Pusher Seals | McMaster-Carr

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System of Measurement

Shaft Diameter

Seal OD

For Use With

Diluted Salt Solutions

Acetic Acid (White Vinegar)

Manufacturer/Brand Equivalent

Sealol Type 43 CE Long

Sealol Type 43 CE Short

Sealol Type 43 CU Short

Seat Material

Diaphragm Material

Viton® Fluoroelastomer

Gasket Material

Maximum Temperature

Maximum Pressure

Washer Material

Spring Material

Manufacturer Equivalent Number

Case Material

Spring Shape

Seat Width

RoHS

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Exempt

REACH

Compliant

Not Compliant

Diaphragm Hardness Rating

Minimum Temperature

185 Products

Mechanical Pump Shaft Seals with Extended Spring

Seal with Conical

Spring

Seal with Straight

Spring

Seal with Retainer

and Straight Spring

For use in waste water, boiler feed, and compressor pumps, these seals have an extra-long spring that accommodates variations in seal cavity length. They come furnished as two pieces—the seal and the seat. The seal is comprised of the case, spring, diaphragm, and washer, which come locked together as one piece. Seal Width represents the working height, which is the compressed length when installed. The seat is comprised of the seat and the gasket.

Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.

Buna-N Diaphragm—Buna-N diaphragms resist grease and a wide range of oils.

EPDM Diaphragm—EPDM diaphragms are more resistant to water and steam than Buna-N and Viton® fluoroelastomer, but aren’t as resistant to oils and chemicals.

Viton® Fluoroelastomer Diaphragm—Viton® fluoroelastomer diaphragms resist a wider range of chemicals than Buna-N.

Buna-N Gasket—Buna-N gaskets resist grease and a wide range of oils.

Viton® Fluoroelastomer Gasket—Viton® fluoroelastomer gaskets resist a wider range of chemicals than Buna-N.

Carbon Washer—Carbon washers are for use with clean liquids.

Silicon Carbide Washer—Silicon carbide washers have a hard surface that resists scratching, so they can be used with liquids that contain abrasives.

Cannot Be Sold Outside North America—Products cannot be sold outside North America due to restrictions.

				Seal			Seat			Material
	For Shaft Dia.	Mfr. Equiv. No.	Mfr./Brand Equiv.	ID	OD	Wd.	ID	OD	Wd.	Washer	Seat	Spring Shape	Includes	Max. Pressure, psi	Cannot Be Sold To		Each
304 Stainless Steel Case and 304 Stainless Steel Spring with Buna-N Diaphragm and Buna-N Gasket



		1/2"	168	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.500"	0.915"	0.812"	0.535"	1.000"	0.312"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	000000


		1/2"	392, 401A, 1012	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.500"	0.93"	0.750"	0.546"	0.934"	0.237"	Carbon	Ceramic	Straight	Spring Retainer	400	Outside North America	00000000	00000
		1/2"	631	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.500"	0.915"	0.812"	0.535"	1.000"	0.312"	Phenolic	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	00000
		5/8"	274	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.625"	1.180"	1.312"	0.671"	1.250"	0.406"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		5/8"	290	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.625"	1.121"	0.875"	0.671"	1.250"	0.406"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		5/8"	359	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.625"	1.180"	0.875"	0.671"	1.250"	0.406"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		5/8"	508	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.625"	1.177"	0.875"	0.671"	1.250"	0.406"	Carbon	Ceramic	Cone	—	250	Outside North America	00000000	00000
		5/8"	800	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.625"	1.111"	1.312"	0.671"	1.148"	0.315"	Carbon	Ceramic	Straight	—	250	Outside North America	00000000	00000
		3/4"	358	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.750"	1.302"	0.875"	0.780"	1.375"	0.406"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		3/4"	107165	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.750"	1.302"	0.687"	0.783"	1.287"	0.252"	Carbon	Ceramic	Straight	—	250	Outside North America	00000000	00000
		7/8"	703	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.875"	1.4"	0.937"	0.921"	1.500"	0.406"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000


		1"	235	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.000"	1.552"	1.000"	1.031"	1.625"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		1 1/8"	356	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.125"	1.753"	1.062"	1.156"	1.750"	0.438"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		1 1/4"	185	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.250"	1.878"	1.062"	1.291"	1.875"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		1 1/4"	381	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.250"	1.990"	1.062"	1.291"	1.875"	0.437"	Carbon	Ceramic	Cone	—	250	Outside North America	00000000	00000
		1 1/4"	466	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.250"	1.878"	1.062"	1.291"	2.000"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		1 1/4"	756	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.250"	1.878"	1.062"	1.291"	1.875"	0.437"	Carbon	Gray Iron	Straight	Spring Retainer	250	Outside North America	00000000	00000
		1 1/4"	976	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.250"	1.990"	1.062"	1.290"	1.768"	0.367"	Carbon	Ceramic	Cone	—	250	Outside North America	00000000	00000
		1 3/8"	177	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.375"	2.001"	1.125"	1.411"	2.000"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		1 1/2"	758	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.500"	2.124"	1.125"	1.546"	2.125"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		1 5/8"	238	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.625"	2.424"	1.375"	1.663"	2.375"	0.500"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000


		1 3/4"	237, 446	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.750"	2.446"	1.375"	1.796"	2.500"	0.500"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		1 7/8"	340	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.875"	2.519"	1.500"	1.927"	2.625"	0.500"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		2"	267	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	2.000"	2.724"	1.500"	2.055"	2.750"	0.500"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		12 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	12.000 mm	23.500 mm	20.500 mm	14.700 mm	25.500 mm	8.000 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		13 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	13.000 mm	23.500 mm	20.500 mm	14.700 mm	25.500 mm	8.000 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		14 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	14.000 mm	27.000 mm	22.250 mm	17.100 mm	31.750 mm	10.250 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		15 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	15.000 mm	27.000 mm	22.250 mm	17.100 mm	31.750 mm	10.250 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		16 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	16.000 mm	27.000 mm	22.250 mm	17.100 mm	31.750 mm	10.250 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		17 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	17.000 mm	27.000 mm	22.250 mm	19.700 mm	35.000 mm	10.250 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		18 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	18.000 mm	30.700 mm	22.250 mm	19.700 mm	35.000 mm	10.250 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000


		20 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	20.000 mm	33.400 mm	23.750 mm	23.900 mm	38.000 mm	10.250 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	00000
		22 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	22.000 mm	33.400 mm	23.750 mm	23.900 mm	38.000 mm	10.250 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		24 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	24.000 mm	39.200 mm	25.500 mm	26.500 mm	41.250 mm	11.000 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		25 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	25.000 mm	39.200 mm	25.500 mm	26.500 mm	41.250 mm	11.000 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		28 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	28.000 mm	45.600 mm	27.000 mm	30.680 mm	44.500 mm	11.000 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		30 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	30.000 mm	47.400 mm	27.000 mm	34.100 mm	47.750 mm	11.000 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		32 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	32.000 mm	47.400 mm	27.000 mm	34.100 mm	47.750 mm	11.000 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		33 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	33.000 mm	52.000 mm	28.500 mm	37.100 mm	50.750 mm	11.000 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		35 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	35.000 mm	52.000 mm	28.500 mm	37.100 mm	50.750 mm	11.000 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		45 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	45.000 mm	65.100 mm	38.000 mm	47.100 mm	63.500 mm	12.750 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	000000


		50 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	50.000 mm	71.000 mm	38.000 mm	51.900 mm	69.750 mm	12.750 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	000000


		304 Stainless Steel Case and 304 Stainless Steel Spring with Viton® Fluoroelastomer Diaphragm and Viton® Fluoroelastomer Gasket



				1/2"	168V	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.500"	0.915"	0.812"	0.535"	1.000"	0.312"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	00000


5/8"				359V	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.625"	1.180"	0.875"	0.671"	1.250"	0.406"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	00000
5/8"	359VSC			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.625"	1.180"	0.875"	0.671"	1.250"	0.406"	Silicon Carbide	Silicon Carbide	Straight	Spring Retainer	250	Outside North America	00000000	00000
3/4"	358V, 750V			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.750"	1.302"	0.875"	0.780"	1.375"	0.406"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
3/4"	877V			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.750"	1.302"	0.797"	0.780"	1.375"	0.406"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	00000
7/8"	309VSC			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.875"	1.422"	0.937"	0.921"	1.500"	0.406"	Silicon Carbide	Silicon Carbide	Straight	Spring Retainer	250	Outside North America	00000000	00000
7/8"	703V			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.875"	1.422"	0.937"	0.921"	1.500"	0.406"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	00000
1"	235V			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.000"	1.552"	1.000"	1.031"	1.625"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	00000
1"	235VSC			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.000"	1.552"	1.000"	1.031"	1.625"	0.437"	Silicon Carbide	Silicon Carbide	Straight	Spring Retainer	250	Outside North America	00000000	00000
1"	245V			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.000"	1.700"	1.000"	1.031"	1.625"	0.437"	Carbon	Ceramic	Cone	—	150	Outside North America	00000000	00000
1 1/8"	356V			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.125"	1.753"	1.062"	1.161"	1.750"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	00000


1 1/8"	356VSC			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.125"	1.753"	1.062"	1.156"	1.750"	0.437"	Silicon Carbide	Silicon Carbide	Straight	Spring Retainer	250	Outside North America	00000000	000000
1 1/4"	185V			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.250"	1.878"	1.062"	1.291"	1.875"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
1 1/4"	185VSC			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.250"	1.878"	1.062"	1.291"	1.875"	0.437"	Silicon Carbide	Silicon Carbide	Straight	Spring Retainer	250	Outside North America	00000000	000000
1 3/8"	177V			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.375"	2.001"	1.125"	1.411"	2.000"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	00000
1 3/8"	177VSC			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.375"	2.001"	1.125"	1.415"	2.000"	0.437"	Silicon Carbide	Silicon Carbide	Straight	Spring Retainer	250	Outside North America	00000000	000000
1 1/2"	758V			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.500"	2.124"	1.125"	1.546"	2.125"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	00000
1 1/2"	758VSC			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.500"	2.124"	1.125"	1.546"	2.125"	0.437"	Silicon Carbide	Silicon Carbide	Straight	Spring Retainer	250	Outside North America	00000000	000000
1 1/2"	11558V			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.500"	2.320"	1.093"	1.546"	2.125"	0.437"	Carbon	Ceramic	Cone	—	250	Outside North America	0000000	00000
1 5/8"	238V			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.625"	2.424"	1.375"	1.663"	2.375"	0.500"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	00000
1 5/8"	238VXFX			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.625"	2.424"	1.375"	1.671"	2.375"	0.500"	Silicon Carbide	Silicon Carbide	Straight	Spring Retainer	250	Outside North America	00000000	000000


1 3/4"	237V			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.750"	2.446"	1.375"	1.796"	2.500"	0.500"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	000000	00000
1 3/4"	237VSC			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.750"	2.446"	1.375"	1.796"	2.500"	0.500"	Silicon Carbide	Silicon Carbide	Straight	Spring Retainer	250	Outside North America	00000000	000000
1 7/8"	340V			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.875"	2.519"	1.500"	1.927"	2.625"	0.500"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	000000
2"	267V			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	2.000"	2.724"	1.500"	2.055"	2.750"	0.500"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	000000
12 mm	—			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	12.000 mm	23.500 mm	20.500 mm	14.700 mm	25.500 mm	8.000 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
13 mm	—			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	13.000 mm	23.500 mm	20.500 mm	14.700 mm	25.500 mm	8.000 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
15 mm	—			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	15.000 mm	27.000 mm	22.250 mm	17.100 mm	31.750 mm	10.250 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
16 mm	—			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	16.000 mm	27.000 mm	22.250 mm	17.100 mm	31.750 mm	10.250 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
17 mm	—			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	17.000 mm	27.000 mm	22.250 mm	19.700 mm	35.000 mm	10.250 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
20 mm	—			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	20.000 mm	33.400 mm	23.750 mm	23.900 mm	38.000 mm	10.250 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000


22 mm	—			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	22.000 mm	33.400 mm	23.750 mm	23.900 mm	38.000 mm	10.250 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
24 mm	—			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	24.000 mm	39.200 mm	25.500 mm	26.500 mm	41.250 mm	11.000 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
28 mm	—			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	28.000 mm	45.600 mm	27.000 mm	30.680 mm	44.500 mm	11.000 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
30 mm	—			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	30.000 mm	47.400 mm	27.000 mm	34.100 mm	47.750 mm	11.000 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
32 mm	—			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	32.000 mm	47.400 mm	27.000 mm	34.100 mm	47.750 mm	11.000 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	00000
35 mm	—			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	35.000 mm	52.000 mm	28.500 mm	37.100 mm	50.750 mm	11.000 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	00000
40 mm	—			John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	40.000 mm	59.200 mm	35.000 mm	43.360 mm	60.250 mm	12.750 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	000000


304 Stainless Steel Case and 304 Stainless Steel Spring with EPDM Diaphragm and EPDM Gasket



				1/2"	168E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.500"	0.915"	0.812"	0.535"	1.000"	0.312"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000


				5/8"	359E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.625"	1.180"	0.875"	0.671"	1.250"	0.406"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
				3/4"	358E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.750"	1.302"	0.875"	0.780"	1.375"	0.406"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	0000000	00000
				7/8"	703E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	0.875"	1.422"	0.937"	0.921"	1.500"	0.406"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
				1"	235E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.000"	1.552"	1.000"	1.031"	1.625"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
				1 1/8"	356E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.125"	1.753"	1.062"	1.161"	1.750"	0.439"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
				1 1/4"	185E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.250"	1.878"	1.062"	1.291"	1.875"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
				1 3/8"	177E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.375"	2.001"	1.125"	1.411"	2.000"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		1 1/2"		758E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.500"	2.124"	1.125"	1.546"	2.125"	0.437"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		1 5/8"	238E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.625"	2.446"	1.375"	1.663"	2.375"	0.500"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		1 3/4"	237E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.750"	2.446"	1.312"	1.796"	2.500"	0.500"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000


		1 7/8"	340E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	1.875"	2.519"	1.500"	1.927"	2.625"	0.500"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	000000
		2"	267E	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	2.000"	2.724"	1.500"	2.055"	2.750"	0.500"	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	000000
		12 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	12.000 mm	23.500 mm	20.500 mm	14.700 mm	25.500 mm	8.000 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		16 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	16.000 mm	27.000 mm	22.250 mm	17.100 mm	31.750 mm	10.250 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000
		25 mm	—	John Crane Type 21 Pac-Seal Type 21 Pac-Seal Type 31 Sealol Type 43 CE Short Sealol Type 43 CU Short	25.000 mm	39.200 mm	25.500 mm	26.500 mm	41.250 mm	11.000 mm	Carbon	Ceramic	Straight	Spring Retainer	250	Outside North America	00000000	00000

Narrow-Profile Mechanical Pump Shaft Seals with Extended Spring

With a smaller seal OD than standards seals, these seals have an extended spring that accommodates variations in seal cavity length. They're used in waste water, boiler feed, and compressor pumps. Seals come furnished as two pieces—the seal and the seat. The seal is comprised of the case, spring, diaphragm, and washer, which come locked together as one piece. Seal Width represents the working height, which is the compressed length when installed. The seat is comprised of the seat and the gasket.

Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.

Cannot Be Sold Outside North America—Products cannot be sold outside North America due to restrictions.

				Seal			Seat			Material
	For Shaft Dia.	Mfr. Equiv. No.	Mfr./Brand Equiv.	ID	OD	Wd.	ID	OD	Wd.	Washer	Seat	Max. Pressure, psi	Cannot Be Sold To		Each
316 Stainless Steel Case and 316 Stainless Steel Spring with Buna-N Diaphragm and Buna-N Gasket



		3/4"	275	John Crane Type 1 Pac-Seal Type 51 Sealol Type 43 CE Long	0.750"	1.199"	1.312"	0.780"	1.375"	0.406"	Carbon	Ceramic	150	Outside North America	00000000	000000


		7/8"	188	John Crane Type 1 Pac-Seal Type 51 Sealol Type 43 CE Long	0.875"	1.324"	1.375"	0.921"	1.500"	0.406"	Carbon	Ceramic	150	Outside North America	00000000	00000
		1"	754	John Crane Type 1 Pac-Seal Type 51 Sealol Type 43 CE Long	1.000"	1.449"	1.562"	1.031"	1.625"	0.437"	Carbon	Ceramic	150	Outside North America	00000000	00000
		1 1/8"	204	John Crane Type 1 Pac-Seal Type 51 Sealol Type 43 CE Long	1.125"	1.562"	1.625"	1.161"	1.750"	0.437"	Carbon	Ceramic	150	Outside North America	00000000	00000
		1 1/4"	361	John Crane Type 1 Pac-Seal Type 51 Sealol Type 43 CE Long	1.250"	1.687"	1.625"	1.291"	1.875"	0.437"	Carbon	Ceramic	150	Outside North America	00000000	00000
		1 3/8"	354	John Crane Type 1 Pac-Seal Type 51 Sealol Type 43 CE Long	1.375"	1.825"	1.687"	1.415"	2.000"	0.437"	Carbon	Ceramic	150	Outside North America	00000000	00000
		1 1/2"	305	John Crane Type 1 Pac-Seal Type 51 Sealol Type 43 CE Long	1.500"	1.949"	1.687"	1.546"	2.125"	0.437"	Carbon	Ceramic	150	Outside North America	00000000	00000
		1 5/8"	745	John Crane Type 1 Pac-Seal Type 51 Sealol Type 43 CE Long	1.625"	2.125"	2.000"	1.671"	2.375"	0.500"	Carbon	Ceramic	150	Outside North America	00000000	000000
		1 3/4"	205	John Crane Type 1 Pac-Seal Type 51 Sealol Type 43 CE Long	1.750"	2.300"	2.000"	1.796"	2.500"	0.500"	Carbon	Ceramic	150	Outside North America	00000000	000000
		1 7/8"	523	John Crane Type 1 Pac-Seal Type 51 Sealol Type 43 CE Long	1.875"	2.437"	2.125"	1.927"	2.625"	0.500"	Carbon	Ceramic	150	Outside North America	00000000	000000


		316 Stainless Steel Case and 316 Stainless Steel Spring with Viton® Fluoroelastomer Diaphragm and Viton® Fluoroelastomer Gasket



				1"	754V	John Crane Type 1 Pac-Seal Type 51 Sealol Type 43 CE Long	1.000"	1.449"	1.562"	1.031"	1.625"	0.437"	Carbon	Ceramic	150	Outside North America	00000000	00000


				1 1/4"	361V	John Crane Type 1 Pac-Seal Type 51 Sealol Type 43 CE Long	1.250"	1.687"	1.625"	1.291"	1.875"	0.437"	Carbon	Ceramic	150	Outside North America	00000000	00000
				1 3/8"	354V	John Crane Type 1 Pac-Seal Type 51 Sealol Type 43 CE Long	1.375"	1.825"	1.687"	1.415"	2.000"	0.437"	Carbon	Ceramic	150	Outside North America	00000000	000000
				1 3/4"	205V	John Crane Type 1 Pac-Seal Type 51 Sealol Type 43 CE Long	1.750"	2.300"	2.000"	1.796"	2.500"	0.500"	Carbon	Ceramic	150	Outside North America	00000000	000000

Heavy Duty Mechanical Pump Shaft Seals

Multiple internal springs ensure these seals keep the sealing surfaces in contact in demanding applications, such as agricultural, chemical, and mining pumps. Seals come furnished as two pieces—the seal and the seat. The seal is comprised of the case, springs, diaphragm, and washer, and the seat is comprised of the seat and the gasket. Seal Width represents the working height, which is the compressed length when installed.

Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.

Cannot Be Sold Outside North America—Products cannot be sold outside North America due to restrictions.

			Seal			Seat			Material
	For Shaft Dia.	Mfr./Brand Equiv.	ID	OD	Wd.	ID	OD	Wd.	Washer	Seat	Max. Pressure, psi	Cannot Be Sold To		Each
316 Stainless Steel Case and 316 Stainless Steel Spring with Viton® Fluoroelastomer Diaphragm and Viton® Fluoroelastomer Gasket



		5/8"	John Crane Type 8T Pac-Seal Type 8T	0.625"	1.062"	0.937"	0.661"	1.250"	0.406"	Carbon	Ceramic	300	Outside North America	0000000	0000000


		3/4"	John Crane Type 8T Pac-Seal Type 8T	0.750"	1.187"	0.937"	0.781"	1.375"	0.406"	Carbon	Ceramic	300	Outside North America	0000000	000000
		1"	John Crane Type 8T Pac-Seal Type 8T	1.000"	1.437"	1.000"	1.064"	1.625"	0.437"	Carbon	Ceramic	300	Outside North America	0000000	000000
		1 1/4"	John Crane Type 8T Pac-Seal Type 8T	1.250"	1.687"	1.000"	1.281"	1.875"	0.437"	Carbon	Ceramic	300	Outside North America	0000000	000000
		1 1/2"	John Crane Type 8T Pac-Seal Type 8T	1.500"	1.937"	1.125"	1.546"	2.125"	0.437"	Carbon	Silicon Carbide	300	Outside North America	0000000	00000000

Mechanical Pump Shaft Seals

Commonly used in well, sump, and displacement pumps, these seals have a two-piece spring-loaded design that keeps the sealing surfaces in contact as the material wears. Seals come furnished as two pieces—the seal and the seat. The seal is comprised of the case, spring, diaphragm, and washer, which come locked together as one piece. Seal Width represents the working height, which is the compressed length when installed. The seat is comprised of the seat and the gasket.

Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.

Buna-N Diaphragm—Buna-N diaphragms resist grease and a wide range of oils.

Viton® Fluoroelastomer Diaphragm—Viton® fluoroelastomer diaphragms resist a wider range of chemicals than Buna-N.

Buna-N Gasket—Buna-N gaskets resist grease and a wide range of oils.

Viton® Fluoroelastomer Gasket—Viton® fluoroelastomer gaskets resist a wider range of chemicals than Buna-N.

Cannot Be Sold Outside North America—Products cannot be sold outside North America due to restrictions.

				Seal			Seat			Material
	For Shaft Dia.	Mfr. Equiv. No.	Mfr./Brand Equiv.	ID	OD	Wd.	ID	OD	Wd.	Washer	Seat	Max. Pressure, psi	Cannot Be Sold To		Each
304 Stainless Steel Case and 304 Stainless Steel Spring with Buna-N Diaphragm and Buna-N Gasket



		3/8"	511	John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L	0.375"	0.917"	0.625"	0.421"	0.875"	0.218"	Phenolic	Gray Iron	150	Outside North America	00000000	000000


		1/2"	162	John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L	0.500"	0.917"	0.656"	0.535"	1.000"	0.312"	Phenolic	Ceramic	150	Outside North America	00000000	00000
		1/2"	60504	John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L	0.500"	0.921"	0.656"	0.535"	1.000"	0.312"	Carbon	Ceramic	150	Outside North America	0000000	00000
		5/8"	100	John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L	0.625"	1.185"	0.718"	0.671"	1.187"	0.343"	Phenolic	Ceramic	150	Outside North America	00000000	0000
		5/8"	501	John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L	0.625"	1.185"	0.812"	0.671"	1.250"	0.406"	Phenolic	Ceramic	150	Outside North America	00000000	00000
		5/8"	516	John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L	0.625"	1.190"	0.718"	0.671"	1.250"	0.406"	Carbon	Ceramic	150	Outside North America	0000000	00000
		5/8"	680	John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L	0.625"	1.185"	0.718"	0.671"	1.187"	0.281"	Carbon	Ceramic	150	Outside North America	00000000	00000
		3/4"	101	John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L	0.750"	1.300"	0.812"	0.780"	1.437"	0.406"	Phenolic	Ceramic	150	Outside North America	00000000	00000
		3/4"	851	John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L	0.750"	1.312"	0.718"	0.780"	1.375"	0.406"	Carbon	Ceramic	150	Outside North America	0000000	00000
		1"	360	John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L	1.000"	1.552"	0.812"	1.031"	1.625"	0.437"	Phenolic	Ceramic	150	Outside North America	00000000	00000
		1"	61004-PAC	John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L	1.000"	1.552"	0.812"	1.062"	1.625"	0.433"	Carbon	Ceramic	150	Outside North America	0000000	00000


		304 Stainless Steel Case and 304 Stainless Steel Spring with Viton® Fluoroelastomer Diaphragm and Viton® Fluoroelastomer Gasket



				5/8"	—	John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L	0.625"	1.185"	0.718"	0.671"	1.250"	0.406"	Phenolic	Ceramic	150	Outside North America	0000000	00000


				5/8"	200V, 516V	John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L	0.625"	1.190"	0.718"	0.671"	1.250"	0.406"	Carbon	Ceramic	150	Outside North America	0000000	00000
				5/8"	606116	John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L	0.625"	1.190"	0.718"	0.671"	1.250"	0.406"	Silicon Carbide	Silicon Carbide	150	Outside North America	0000000	00000
				3/4"	201V, 851V	John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L	0.750"	1.300"	0.718"	0.780"	1.375"	0.406"	Phenolic	Ceramic	150	Outside North America	0000000	00000
				3/4"	201VSC	John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L	0.750"	1.312"	0.718"	0.797"	1.375"	0.406"	Silicon Carbide	Silicon Carbide	150	Outside North America	0000000	00000
				3/4"	219V	John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L	0.750"	1.302"	0.718"	0.780"	1.375"	0.406"	Carbon	Ceramic	150	Outside North America	0000000	00000
				1"	360V	John Crane Type 6 Pac-Seal Type 16 Sealol Type 60L	1.000"	1.552"	0.812"	1.031"	1.625"	0.433"	Carbon	Ceramic	150	Outside North America	0000000	00000

Mechanical Pump Shaft Seals with Compact Spring

Built for small circulation and dispensing pumps, these seals have short springs. The spring-loaded design keeps the sealing surfaces in contact as the material wears. Seals come furnished as two pieces—the seal and the seat. The seal is comprised of the case, spring, diaphragm, and washer, which come locked together as one piece. Seal Width represents the working height, which is the compressed length when installed. The seat is comprised of the seat and the gasket.

Note: Maximum performance values cannot be achieved simultaneously. For example, speed is affected by pressure, temperature, and other operating conditions.

Buna-N Diaphragm—Buna-N diaphragms resist grease and a wide range of oils.

Viton® Fluoroelastomer Diaphragm—Viton® fluoroelastomer diaphragms resist a wider range of chemicals than Buna-N.

Buna-N Gasket—Buna-N gaskets resist grease and a wide range of oils.

Viton® Fluoroelastomer Gasket—Viton® fluoroelastomer gaskets resist a wider range of chemicals than Buna-N.

Cannot Be Sold Outside North America—Products cannot be sold outside North America due to restrictions.

				Seal			Seat			Material
	For Shaft Dia.	Mfr. Equiv. No.	Mfr./Brand Equiv.	ID	OD	Wd.	ID	OD	Wd.	Washer	Seat	Max. Pressure, psi	Cannot Be Sold To		Each
304 Stainless Steel Case and 304 Stainless Steel Spring with Buna-N Diaphragm and Buna-N Gasket



		5/8"	409	John Crane Type 6A Pac-Seal Type 68 Sealol Type 6	0.625"	1.437"	0.615"	0.656"	1.060"	0.187"	Phenolic	Gray Iron	75	Outside North America	0000000	000000


		5/8"	600	John Crane Type 6A Pac-Seal Type 68 Sealol Type 6	0.625"	1.437"	0.615"	0.671"	1.187"	0.343"	Phenolic	Ceramic	75	Outside North America	0000000	00000
		5/8"	965	John Crane Type 6A Pac-Seal Type 68 Sealol Type 6	0.625"	1.437"	0.615"	0.671"	1.250"	0.406"	Carbon	Ceramic	75	Outside North America	00000000	00000
		5/8"	1000	John Crane Type 6A Pac-Seal Type 68 Sealol Type 6	0.625"	1.437"	0.615"	0.671"	1.250"	0.406"	Phenolic	Ceramic	75	Outside North America	00000000	00000
		3/4"	601	John Crane Type 6A Pac-Seal Type 68 Sealol Type 6	0.750"	1.575"	0.615"	0.780"	1.375"	0.406"	Phenolic	Ceramic	75	Outside North America	00000000	00000


		304 Stainless Steel Case and 304 Stainless Steel Spring with Viton® Fluoroelastomer Diaphragm and Viton® Fluoroelastomer Gasket



				1/2"	80509	John Crane Type 6A Pac-Seal Type 68 Sealol Type 6	0.500"	1.125"	0.537"	0.585"	1.000"	0.312"	Carbon	Ceramic	75	Outside North America	0000000	00000


				5/8"	668V	John Crane Type 6A Pac-Seal Type 68 Sealol Type 6	0.625"	1.437"	0.615"	0.671"	1.250"	0.406"	Carbon	Ceramic	75	Outside North America	00000000	00000
				3/4"	601V	John Crane Type 6A Pac-Seal Type 68 Sealol Type 6	0.750"	1.575"	0.615"	0.780"	1.375"	0.406"	Carbon	Ceramic	75	Outside North America	00000000	00000

Cartridge Mechanical Shaft Seals

Install these seals faster and with less technical expertise than other mechanical shaft seals that come in two pieces. They come with their seal and seat already assembled. All have a carbon washer that is self-lubricating. However, this means their washer is too soft to be used with abrasive liquids and liquids with harsh additives.

Fluoroelastomer Diaphragm—Seals with a fluoroelastomer diaphragm can be used with a wider range of chemicals than EPDM diaphragms, including benzene, butyl alcohol, and fuels.

EPDM Diaphragm—Seals with an EPDM diaphragm won’t break down from exposure to water and steam. However, they are for use with fewer chemicals.

		Seal				Fluoroelastomer Diaphragm		EPDM Diaphragm
	For Shaft Dia.	ID	OD	Wd.	Max. Pressure, psi		Each		Each
316 Stainless Steel Case and C276 Nickel Spring with PTFE Gasket



		1"	1"	2.626"	2.736"	220	0000000	000000000	0000000	000000000


		1 1/8"	1.125"	2.752"	2.736"	220	0000000	00000000	0000000	00000000
		1 1/4"	1.25"	2.874"	2.736"	220	0000000	00000000	0000000	00000000
		1 3/8"	1.375"	3.063"	2.736"	220	0000000	00000000	0000000	00000000
		1 1/2"	1.5"	3.437"	2.815"	220	0000000	00000000	0000000	00000000
		1 5/8"	1.625"	3.437"	2.815"	220	0000000	00000000	0000000	00000000
		1 3/4"	1.75"	3.563"	2.815"	220	0000000	00000000	0000000	00000000
		1 7/8"	1.875"	3.874"	2.815"	220	0000000	00000000	0000000	00000000
		2"	2"	3.874"	2.815"	220	0000000	00000000	0000000	00000000
		24 mm	24 mm	66.7 mm	69.5 mm	220	0000000	00000000	0000000	00000000
		25 mm	25 mm	66.7 mm	69.5 mm	220	0000000	00000000	0000000	00000000


		28 mm	28 mm	69.9 mm	69.5 mm	220	0000000	00000000	0000000	00000000
		30 mm	30 mm	73 mm	69.5 mm	220	0000000	00000000	0000000	00000000
		32 mm	32 mm	73 mm	69.5 mm	220	0000000	00000000	0000000	00000000
		33 mm	33 mm	77.8 mm	69.5 mm	220	0000000	00000000	0000000	00000000
		35 mm	35 mm	77.8 mm	69.5 mm	220	0000000	00000000	0000000	00000000
		38 mm	38 mm	87.3 mm	71.5 mm	220	0000000	00000000	0000000	00000000
		40 mm	40 mm	87.3 mm	71.5 mm	220	0000000	00000000	0000000	00000000
		43 mm	43 mm	90.5 mm	71.5 mm	220	0000000	00000000	0000000	00000000
		45 mm	45 mm	90.5 mm	71.5 mm	220	0000000	00000000	0000000	00000000
		48 mm	48 mm	98.4 mm	71.5 mm	220	0000000	00000000	0000000	00000000


		50 mm	50 mm	98.4 mm	71.5 mm	220	0000000	00000000	0000000	00000000