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. Polyurethane is also known as urethane, cast urethan and millable urethane.

Polyurethane is also known as urethane, cast urethan and millable urethane. Exceptional tensile strength. Abrasion and low temperature resistance. Typical applications include hydraulic seals, gaskets, diaphragms, hoses, and wheels for skate boards. 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
182753
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 4.600 in116.84 mm N/A 0.005 in0.13 mm N/A -350 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182754
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 4.600 in116.84 mm N/A 0.005 in0.13 mm N/A -350 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182481
N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 4.516 in114.71 mm N/A 0.006 in0.15 mm N/A -624 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182482
N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 4.516 in114.71 mm N/A 0.006 in0.15 mm N/A -624 N/A N/A O-rings are used in the military defense and agriculture industries.v
N/A
183159
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 70 N/A 4.489 in114.02 mm N/A 0.003 in0.08 mm N/A -047 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183160
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 90 N/A 4.489 in114.02 mm N/A 0.003 in0.08 mm N/A -047 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183041
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 4.487 in113.97 mm N/A 0.003 in0.08 mm N/A -157 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183042
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 4.487 in113.97 mm N/A 0.003 in0.08 mm N/A -157 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182907
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 4.484 in113.89 mm N/A 0.004 in0.10 mm N/A -246 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182908
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 4.484 in113.89 mm N/A 0.004 in0.10 mm N/A -246 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182661
N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 70 N/A 4.475 in113.67 mm N/A 0.006 in0.15 mm N/A -425 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182662
N/A BS Standard O-Ring N/A Polyurethane N/A 0.275 in6.99 mm N/A 90 N/A 4.475 in113.67 mm N/A 0.006 in0.15 mm N/A -425 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182755
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 4.475 in113.67 mm N/A 0.005 in0.13 mm N/A -349 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182756
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 4.475 in113.67 mm N/A 0.005 in0.13 mm N/A -349 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182545
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 70 N/A 4.36 in110.74 mm N/A 0.003 in0.08 mm N/A -542 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182546
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 90 N/A 4.36 in110.74 mm N/A 0.003 in0.08 mm N/A -542 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182909
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 4.359 in110.72 mm N/A 0.004 in0.10 mm N/A -245 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182910
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 4.359 in110.72 mm N/A 0.004 in0.10 mm N/A -245 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182757
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 4.350 in110.49 mm N/A 0.005 in0.13 mm N/A -348 N/A N/A O-rings are used in the military defense and agriculture industries.v
N/A
182758
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 4.350 in110.49 mm N/A 0.005 in0.13 mm N/A -348 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182483
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 4.313 in109.54 mm N/A 0.005 in0.13 mm N/A -623 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182484
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 4.313 in109.54 mm N/A 0.005 in0.13 mm N/A -623 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183161
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 70 N/A 4.239 in107.67 mm N/A 0.003 in0.08 mm N/A -046 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183162
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 90 N/A 4.239 in107.67 mm N/A 0.003 in0.08 mm N/A -046 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183043
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 4.237 in107.62 mm N/A 0.003 in0.08 mm N/A -156 N/A N/A O-rings are used in the military defense and agriculture industries.
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