Beige O-Rings | McMaster-Carr

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Seal ID

Seal OD

Seal Width

For Use With

Rod Diameter

For Shaft Motion

For Cylinder Type

For Sealing

Maximum Pressure

3,000 psi to 9,999 psi

10,000 psi or greater

Color

Groove Width

Cylinder Seal Type

Material

Hardness Rating

Maximum Temperature

Hardness

Minimum Temperature

REACH

RoHS

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

Yes

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

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75 Products

About Cylinder Seals

Identify cylinder sealing components and learn what they do.

Rod Seals


Side 1	Side 2	Profile

These seals have a beveled lip that optimizes contact against the rod, while a secondary lip keeps the seal stable.

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

		For Groove
	For Rod Dia.	Dia.	Wd.	Max. Speed, ft/sec	Max. Pressure, psi	Temp. Range, ° F	Hardness	Color		Each
Polyurethane Rubber



		1/4"	0.500"	0.206"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N31	00000


		3/8"	0.625"	0.206"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N32	0000
		1/2"	0.750"	0.206"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N33	0000
		1/2"	0.750"	0.275"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N34	0000
		5/8"	0.875"	0.206"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N35	0000
		5/8"	0.875"	0.275"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N36	0000
		3/4"	1.000"	0.275"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N37	00000
		7/8"	1.125"	0.275"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N38	00000
		1"	1.250"	0.206"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N39	00000
		1"	1.250"	0.275"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N41	00000
		1 1/8"	1.375"	0.275"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N42	00000


		1 1/4"	1.500"	0.206"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N43	00000
		1 1/4"	1.500"	0.275"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N44	00000
		1 1/2"	1.750"	0.275"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N45	00000
		1 1/2"	1.875"	0.413"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N46	00000
		1 1/2"	2.000"	0.413"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N47	00000
		1 5/8"	2.000"	0.413"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N48	00000
		1 3/4"	2.125"	0.275"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N49	00000
		1 3/4"	2.125"	0.413"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N51	00000
		1 3/4"	2.250"	0.413"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N52	00000
		1 7/8"	2.250"	0.413"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N53	00000


		2"	2.375"	0.275"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N54	00000
		2"	2.375"	0.413"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N55	00000
		2"	2.500"	0.413"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N56	00000
		2 1/4"	2.625"	0.343"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N57	00000
		2 1/4"	2.750"	0.413"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N58	00000
		2 1/2"	2.875"	0.413"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N59	00000
		2 1/2"	3.000"	0.413"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N61	00000
		2 3/4"	3.250"	0.413"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N62	00000
		3"	3.500"	0.413"	1.6	5,000	-65 to 275	Durometer 90A (Hard)	Beige	1995N63	00000

High-Pressure Hydraulic Cylinder Buffering Seals


Side 1	Side 2	Profile

Rated for pressure up to 10,000 psi, these seals withstand the highest pressure of our buffering seals. Use in tandem with rod seals to protect the cylinder from pressure spikes and shock.

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

		For Groove
	For Rod Dia.	Dia.	Wd.	Max. Speed, ft/sec	Max. Pressure, psi	Temp. Range, ° F	Hardness	Color	Backup Ring Color		Each
Polyurethane Rubber with Nylon Backup Ring



		1/2"	0.750"	0.206"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N32	00000


		3/4"	1.125"	0.206"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N33	00000
		1"	1.375"	0.206"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N34	00000
		1 1/8"	1.500"	0.206"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N35	00000
		1 1/4"	1.625"	0.206"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N36	00000
		1 3/8"	1.750"	0.206"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N37	00000
		1 1/2"	2.000"	0.275"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N38	00000
		1 3/4"	2.250"	0.275"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N39	00000
		1 7/8"	2.375"	0.275"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N41	00000
		2"	2.500"	0.275"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N42	00000
		2 1/2"	3.000"	0.275"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N43	00000


		2 3/4"	3.250"	0.275"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N44	00000
		3"	3.500"	0.275"	1.6	10,000	-65 to 250	Durometer 90A (Hard)	Beige	Gray	2008N45	00000

Cylinder-Sealing Rod Wipers


Side 1	Side 2


	Profile

These wipers seal against the cylinder to prevent contaminants from entering between the outside edge and the housing. They’re often used in vertically mounted cylinders.

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

		For Groove			Seal
	For Rod Dia.	Dia.	Shoulder Dia.	Wd.	Wd.	Overall Wd.	Max. Speed, ft/sec	Max. Pressure	Temp. Range, ° F	Hardness	Color		Each
Polyurethane Rubber



		1/4"	0.497"	0.410"	0.124"	0.210"	0.215"	1.6	Not Rated	-65 to 275	Durometer 90A (Extra Hard)	Beige	1412N11	000000


		3/8"	0.622"	0.535"	0.124"	0.210"	0.215"	1.6	Not Rated	-65 to 275	Durometer 90A (Extra Hard)	Beige	1412N12	00000
		1/2"	0.747"	0.660"	0.124"	0.210"	0.215"	1.6	Not Rated	-65 to 275	Durometer 90A (Extra Hard)	Beige	1412N13	00000
		5/8"	0.872"	0.785"	0.124"	0.210"	0.215"	1.6	Not Rated	-65 to 275	Durometer 90A (Extra Hard)	Beige	1412N14	00000
		3/4"	1.122"	0.995"	0.187"	0.305"	0.315"	1.6	Not Rated	-65 to 275	Durometer 90A (Extra Hard)	Beige	1412N15	00000
		7/8"	1.247"	1.120"	0.187"	0.305"	0.315"	1.6	Not Rated	-65 to 275	Durometer 90A (Extra Hard)	Beige	1412N16	00000
		1"	1.372"	1.245"	0.187"	0.305"	0.315"	1.6	Not Rated	-65 to 275	Durometer 90A (Extra Hard)	Beige	1412N17	00000
		1 1/8"	1.497"	1.370"	0.187"	0.305"	0.315"	1.6	Not Rated	-65 to 275	Durometer 90A (Extra Hard)	Beige	1412N18	00000
		1 1/4"	1.622"	1.495"	0.187"	0.305"	0.315"	1.6	Not Rated	-65 to 275	Durometer 90A (Extra Hard)	Beige	1412N19	00000
		1 3/8"	1.747"	1.620"	0.187"	0.305"	0.315"	1.6	Not Rated	-65 to 275	Durometer 90A (Extra Hard)	Beige	1412N21	00000
		1 1/2"	1.872"	1.745"	0.187"	0.305"	0.315"	1.6	Not Rated	-65 to 275	Durometer 90A (Extra Hard)	Beige	1412N22	00000


		1 5/8"	1.997"	1.870"	0.187"	0.305"	0.315"	1.6	Not Rated	-65 to 275	Durometer 90A (Extra Hard)	Beige	1412N23	00000
		1 3/4"	2.122"	1.995"	0.187"	0.305"	0.315"	1.6	Not Rated	-65 to 275	Durometer 90A (Extra Hard)	Beige	1412N24	00000
		1 7/8"	2.247"	2.120"	0.187"	0.305"	0.315"	1.6	Not Rated	-65 to 275	Durometer 90A (Extra Hard)	Beige	1412N25	00000
		2"	2.497"	2.327"	0.249"	0.395"	0.415"	1.6	Not Rated	-65 to 275	Durometer 90A (Extra Hard)	Beige	1412N26	00000
		2 1/4"	2.747"	2.577"	0.249"	0.395"	0.415"	1.6	Not Rated	-65 to 275	Durometer 90A (Extra Hard)	Beige	1412N27	00000
		2 1/2"	2.997"	2.827"	0.249"	0.395"	0.415"	1.6	Not Rated	-65 to 275	Durometer 90A (Extra Hard)	Beige	1412N28	00000
		2 3/4"	3.247"	3.077"	0.249"	0.395"	0.415"	1.6	Not Rated	-65 to 275	Durometer 90A (Extra Hard)	Beige	1412N29	00000
		3"	3.497"	3.327"	0.249"	0.395"	0.415"	1.6	Not Rated	-65 to 275	Durometer 90A (Extra Hard)	Beige	1412N31	00000

Sealing Washers

Prevent leaks while distributing weight evenly under nuts and screws. These washers compress as you tighten to keep air and fluid in, and dust and contaminants out. Use them anywhere you need a tight seal, such as protecting electronics from moisture or keeping lubricants contained in machinery.

Rubber

Resist leaks better than metal sealing washers, but are more susceptible to wear and tear. Reuse these washers a handful of times, as long as the material isn't damaged.

Weather- and Chemical-Resistant Santoprene—Not only will these washers withstand sunlight, rain, and ozone, they also won't degrade when exposed to acids and other harsh chemicals. They are more wear resistant than EPDM washers to stand up to repeated use.

					Temp. Range, ° F
	For Screw Size	ID	OD	Thk.	Min.	Max.	Color	Pkg. Qty.		Pkg.
Weather- and Chemical-Resistant Santoprene



		No. 6	0.120"	0.250"	0.068" to 0.088"	-40	270	Beige	50	94733A767	000000


		No. 6	0.120"	0.375"	0.068" to 0.088"	-40	270	Beige	50	94733A768	00000
		No. 8	0.150"	0.312"	0.068" to 0.088"	-40	270	Beige	50	94733A771	00000
		No. 10	0.170"	0.500"	0.068" to 0.088"	-40	270	Beige	50	94733A777	00000
		No. 12	0.195"	0.562"	0.068" to 0.088"	-40	270	Beige	50	94733A782	00000
		1/4"	0.230"	0.500"	0.068" to 0.088"	-40	270	Beige	50	94733A784	0000
		1/4"	0.230"	0.500"	0.081" to 0.105"	-40	270	Beige	50	94733A785	00000
		3/8"	0.355"	0.625"	0.068" to 0.088"	-40	270	Beige	25	94733A793	0000
		3/8"	0.355"	0.625"	0.081" to 0.105"	-40	270	Beige	25	94733A794	00000
		3/8"	0.355"	0.812"	0.068" to 0.088"	-40	270	Beige	10	94733A795	00000
		1/2"	0.490"	1.062"	0.068" to 0.088"	-40	270	Beige	10	94733A797	00000


		1/2"	0.490"	1.062"	0.081" to 0.105"	-40	270	Beige	10	94733A798	00000
		3/4"	0.740"	1.500"	0.068" to 0.088"	-40	270	Beige	5	94733A802	0000