Durometer 85A O-Rings | McMaster-Carr

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System of Measurement

Shaft Diameter

Seal ID

Seal OD

Seal Width

Material

For Use With

Diluted Salt Solutions

Sodium Bicarbonate (Baking Soda)

Vegetable Oil

Maximum Pressure

Less than 1,000 psi

3,000 psi to 9,999 psi

10,000 psi or greater

Screw Size

Thickness

Rotation Speed

2,000 rpm to 2,999 rpm

3,000 rpm to 9,999 rpm

10,000 rpm to 19,999 rpm

20,000 rpm or greater

Maximum Temperature

For Sealing

Washer Type

Color

Hardness Rating

Faceplate Diameter

REACH

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

RoHS

28 Products

Shaft-Mounted Rotary Shaft Seals


Side 1	Side 2	Profile

Also known as V-rings and flingers, these seals protect shaft bearings by blocking dust and other contaminants while retaining lubricant. They’re Buna-N for excellent resistance to oil and grease. To install, stretch the seal over your shaft and press it firmly against the faceplate. The Seal OD and Seal Width listed are the dimensions of the seal after it is installed.

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

	For Shaft			Seal
	Dia.	Dia. Range	For Faceplate Dia.	ID	OD	Wd.	Max. Rotation Speed, rpm	Max. Pressure, psi	Temp. Range, ° F	Hardness	Color		Each
Buna-N



		1/4"	0.210" to 0.260"	0.500" to 0.550"	0.193"	0.547"	0.190"	29,000	100	-20 to 225	Durometer 85A (Hard)	Black	9562K41	00000


		3/8"	0.370" to 0.450"	0.890" to 0.970"	0.340"	0.891"	0.250"	17,400	100	-20 to 225	Durometer 85A (Hard)	Black	9562K42	0000
		1/2"	0.450" to 0.530"	0.970" to 1.050"	0.414"	1.016"	0.250"	14,500	100	-20 to 225	Durometer 85A (Hard)	Black	9562K43	0000
		5/8"	0.610" to 0.690"	1.210" to 1.290"	0.561"	1.234"	0.375"	10,900	100	-20 to 225	Durometer 85A (Hard)	Black	9562K44	0000
		3/4"	0.690" to 0.770"	1.290" to 1.370"	0.635"	1.359"	0.375"	9,600	100	-20 to 225	Durometer 85A (Hard)	Black	9562K45	0000
		1"	0.950" to 1.070"	1.550" to 1.670"	0.874"	1.609"	0.375"	6,900	100	-20 to 225	Durometer 85A (Hard)	Black	9562K46	0000
		1 1/8"	1.070" to 1.140"	1.670" to 1.740"	0.984"	1.725"	0.375"	6,200	100	-20 to 225	Durometer 85A (Hard)	Black	9562K81	0000
		1 1/4"	1.220" to 1.300"	1.820" to 1.900"	1.122"	1.859"	0.375"	5,400	100	-20 to 225	Durometer 85A (Hard)	Black	9562K47	0000
		1 3/8"	1.300" to 1.420"	1.900" to 2.020"	1.196"	1.975"	0.375"	4,900	100	-20 to 225	Durometer 85A (Hard)	Black	9562K82	0000
		1 1/2"	1.500" to 1.700"	2.100" to 2.300"	1.380"	2.109"	0.375"	4,300	100	-20 to 225	Durometer 85A (Hard)	Black	9562K48	0000
		1 3/4"	1.700" to 1.890"	2.300" to 2.490"	1.564"	2.359"	0.375"	3,800	100	-20 to 225	Durometer 85A (Hard)	Black	9562K49	0000


		2"	1.890" to 2.090"	2.490" to 2.690"	1.739"	2.609"	0.375"	3,400	100	-20 to 225	Durometer 85A (Hard)	Black	9562K51	0000
		2 1/4"	2.090" to 2.290"	2.690" to 2.890"	1.923"	2.859"	0.375"	3,100	100	-20 to 225	Durometer 85A (Hard)	Black	9562K52	0000
		2 3/8"	2.290" to 2.480"	2.890" to 3.080"	2.107"	2.975"	0.500"	2,900	100	-20 to 225	Durometer 85A (Hard)	Black	9562K83	0000
		2 1/2"	2.480" to 2.680"	3.080" to 3.280"	2.282"	3.109"	0.500"	2,600	100	-20 to 225	Durometer 85A (Hard)	Black	9562K53	0000
		2 3/4"	2.680" to 2.880"	3.280" to 3.480"	2.466"	3.359"	0.500"	2,400	100	-20 to 225	Durometer 85A (Hard)	Black	9562K54	00000
		3"	2.880" to 3.070"	3.480" to 3.670"	2.650"	3.609"	0.500"	2,300	100	-20 to 225	Durometer 85A (Hard)	Black	9562K55	0000
		3 1/4"	3.070" to 3.270"	3.670" to 3.870"	2.824"	3.859"	0.500"	2,100	100	-20 to 225	Durometer 85A (Hard)	Black	9562K56	0000
		3 1/2"	3.470" to 3.660"	4.070" to 4.260"	3.192"	4.109"	0.500"	1,900	100	-20 to 225	Durometer 85A (Hard)	Black	9562K57	00000
		3 3/4"	3.660" to 3.860"	4.260" to 4.460"	3.367"	4.350"	0.500"	1,800	100	-20 to 225	Durometer 85A (Hard)	Black	9562K84	00000
		4"	3.860" to 4.140"	4.460" to 4.740"	3.551"	4.609"	0.500"	1,700	100	-20 to 225	Durometer 85A (Hard)	Black	9562K59	00000

High-Pressure Bonded Sealing Washers

Tested to hold up to high pressures, these washers create the strongest seal of all to lock in air and fluid and keep equipment running efficiently. They are often used on flanged connections to prevent leaks in pumps, hydraulic systems, compressors, and other pressurized lines. The flexible rubber or plastic layer compresses to fills gaps, while the metal backing stops the washer from squeezing through the hole.

For Screw Heads

Fit under screw heads to stop leaks. These washers seal best on screws that aren't threaded all the way up to the head. Reuse them a handful of times, as long as the material isn't damaged.

Oil-Resistant Zinc-Plated Steel and Buna-N—These washers won't swell or soften when they touch oil, grease, and fuel. However, they will degrade if exposed to synthetic lubricants. They are also are more susceptible to rusting than 18-8 and 316 stainless steel.

					Max. Pressure, psi, psi		Temp. Range, ° F
	For Screw Size	ID, mm	OD, mm	Thk., mm	For Fluids	For Gases	Min.	Max.	Color	Pkg. Qty.		Pkg.
Oil-Resistant Zinc-Plated Steel and Buna-N



		M5	4.8	9.8	0.9 to 1.2	15,200	200	-30	220	Black	5	93786A100	000000


		M6	5.8	11.3	1.1 to 1.4	12,800	200	-30	220	Black	5	93786A125	00000
		M8	7.8	13.5	1.1 to 1.4	7,900	200	-30	220	Black	5	93786A150	00000
		M10	9.7	15.3	1.1 to 1.4	7,200	200	-30	220	Black	5	93786A175	00000
		M12	11.7	19.3	1.1 to 1.4	7,100	200	-30	220	Black	5	93786A200	00000
		M14	13.7	22.4	1.1 to 1.4	8,000	200	-30	220	Black	5	93786A225	00000
		M16	15.7	27.1	1.1 to 1.4	12,500	200	-30	220	Black	5	93786A250	00000