British Standard O-Rings are very similar to Standard O-Rings in the fact that they are both standardized imperically. The British Standard however, incorporates some extended sizes in the 1/4" nominal cross section group for an even broader application range. British Standard O-Rings serve a variety of industries including aerospace, paint, food, and chemical transport. Viton is also known as: Fluorocarbon and FKM. Viton® is a registered trademarks of DuPont® Dow Elastomers.

A fluoroelastomer compound with a combination of exceptional mechanical properties and compression set resistance. This particular energizer gives an O-ring excellent memory and the ability to recover rapidly from deformation. This core has a Shore A hardness of 75 with a suggested operating temperature range of -10°F to +300°F (-23°C to +150°C) in encapsulated applications. For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.
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O-Ring Industries

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N/A
185374
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 75 N/A 9.984 in253.59 mm N/A 0.004 in0.10 mm N/A -274 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185837
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 90 N/A 9.984 in253.59 mm N/A 0.004 in0.10 mm N/A -274 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185718
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 90 N/A 9.975 in253.37 mm N/A 0.006 in0.15 mm N/A -449 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185255
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 75 N/A 9.975 in253.37 mm N/A 0.006 in0.15 mm N/A -449 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185298
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 75 N/A 9.975 in253.37 mm N/A 0.005 in0.13 mm N/A -377 N/A N/A O-rings are used in the military defense and agriculture industries.v
N/A
185761
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 90 N/A 9.975 in253.37 mm N/A 0.005 in0.13 mm N/A -377 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185448
N/A BS Standard O-Ring N/A Viton N/A 0.103 in2.62 mm N/A 75 N/A 9.737 in247.32 mm N/A 0.003 in0.08 mm N/A -178 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185911
N/A BS Standard O-Ring N/A Viton N/A 0.103 in2.62 mm N/A 90 N/A 9.737 in247.32 mm N/A 0.003 in0.08 mm N/A -178 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185838
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 90 N/A 9.734 in247.24 mm N/A 0.004 in0.10 mm N/A -273 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185375
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 75 N/A 9.734 in247.24 mm N/A 0.004 in0.10 mm N/A -273 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185299
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 75 N/A 9.725 in247.02 mm N/A 0.005 in0.13 mm N/A -376 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185762
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 90 N/A 9.725 in247.02 mm N/A 0.005 in0.13 mm N/A -376 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185577
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 75 N/A 9.725 in247.02 mm N/A 0.006 in0.15 mm N/A -448A N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
186040
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 90 N/A 9.725 in247.02 mm N/A 0.006 in0.15 mm N/A -448A N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185912
N/A BS Standard O-Ring N/A Viton N/A 0.103 in2.62 mm N/A 90 N/A 9.487 in240.97 mm N/A 0.003 in0.08 mm N/A -177 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185449
N/A BS Standard O-Ring N/A Viton N/A 0.103 in2.62 mm N/A 75 N/A 9.487 in240.97 mm N/A 0.003 in0.08 mm N/A -177 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185376
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 75 N/A 9.484 in240.89 mm N/A 0.004 in0.10 mm N/A -272 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185839
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 90 N/A 9.484 in240.89 mm N/A 0.004 in0.10 mm N/A -272 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185719
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 90 N/A 9.475 in240.67 mm N/A 0.006 in0.15 mm N/A -448 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185256
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 75 N/A 9.475 in240.67 mm N/A 0.006 in0.15 mm N/A -448 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185300
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 75 N/A 9.475 in240.67 mm N/A 0.005 in0.13 mm N/A -375 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185763
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 90 N/A 9.475 in240.67 mm N/A 0.005 in0.13 mm N/A -375 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185450
N/A BS Standard O-Ring N/A Viton N/A 0.103 in2.62 mm N/A 75 N/A 9.237 in234.62 mm N/A 0.003 in0.08 mm N/A -176 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185913
N/A BS Standard O-Ring N/A Viton N/A 0.103 in2.62 mm N/A 90 N/A 9.237 in234.62 mm N/A 0.003 in0.08 mm N/A -176 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185840
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 90 N/A 9.234 in234.54 mm N/A 0.004 in0.10 mm N/A -271 N/A N/A O-rings are used in the military defense and agriculture industries.
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