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
185639
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 90 N/A 12.225 in310.52 mm N/A 0.006 in0.15 mm N/A -648 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185713
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 90 N/A 12.475 in316.87 mm N/A 0.006 in0.15 mm N/A -454 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185250
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 75 N/A 12.475 in316.87 mm N/A 0.006 in0.15 mm N/A -454 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185175
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 75 N/A 12.725 in323.22 mm N/A 0.006 in0.15 mm N/A -649 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185638
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 90 N/A 12.725 in323.22 mm N/A 0.006 in0.15 mm N/A -649 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185712
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 90 N/A 12.975 in329.57 mm N/A 0.006 in0.15 mm N/A -455 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185756
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 90 N/A 12.975 in329.57 mm N/A 0.005 in0.13 mm N/A -382 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185249
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 75 N/A 12.975 in329.57 mm N/A 0.006 in0.15 mm N/A -455 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185293
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 75 N/A 12.975 in329.57 mm N/A 0.005 in0.13 mm N/A -382 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185369
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 75 N/A 12.984 in329.79 mm N/A 0.004 in0.10 mm N/A -279 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185832
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 90 N/A 12.984 in329.79 mm N/A 0.004 in0.10 mm N/A -279 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185637
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 90 N/A 13.225 in335.92 mm N/A 0.006 in0.15 mm N/A -650 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185174
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 75 N/A 13.225 in335.92 mm N/A 0.006 in0.15 mm N/A -650 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185248
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 75 N/A 13.475 in342.27 mm N/A 0.006 in0.15 mm N/A -456 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185711
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 90 N/A 13.475 in342.27 mm N/A 0.006 in0.15 mm N/A -456 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185755
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 90 N/A 13.975 in354.97 mm N/A 0.005 in0.13 mm N/A -383 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185292
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 75 N/A 13.975 in354.97 mm N/A 0.005 in0.13 mm N/A -383 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185247
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 75 N/A 13.9751 in354.97 mm N/A 0.006 in0.15 mm N/A -457 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185710
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 90 N/A 13.9751 in354.97 mm N/A 0.006 in0.15 mm N/A -457 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185831
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 90 N/A 13.984 in355.19 mm N/A 0.004 in0.10 mm N/A -280 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185368
N/A BS Standard O-Ring N/A Viton N/A 0.139 in3.53 mm N/A 75 N/A 13.984 in355.19 mm N/A 0.004 in0.10 mm N/A -280 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185246
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 75 N/A 14.475 in367.67 mm N/A 0.006 in0.15 mm N/A -458 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185709
N/A BS Standard O-Ring N/A Viton N/A 0.275 in6.99 mm N/A 90 N/A 14.475 in367.67 mm N/A 0.006 in0.15 mm N/A -458 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185754
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 90 N/A 14.975 in380.37 mm N/A 0.005 in0.13 mm N/A -384 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
185291
N/A BS Standard O-Ring N/A Viton N/A 0.210 in5.33 mm N/A 75 N/A 14.975 in380.37 mm N/A 0.005 in0.13 mm N/A -384 N/A N/A O-rings are used in the military defense and agriculture industries.
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