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
183134
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 0.424 in10.77 mm N/A 0.003 in0.08 mm N/A -111 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183227
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 70 N/A 0.426 in10.82 mm N/A 0.003 in0.08 mm N/A -013 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183228
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 90 N/A 0.426 in10.82 mm N/A 0.003 in0.08 mm N/A -013 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182441
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 70 N/A 0.437 in11.10 mm N/A 0.003 in0.08 mm N/A -806 N/A N/A O-rings are used in the military defense and agriculture industries.v
N/A
182442
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 90 N/A 0.437 in11.10 mm N/A 0.003 in0.08 mm N/A -806 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182501
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 0.469 in11.91 mm N/A 0.003 in0.08 mm N/A -614 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182502
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 0.469 in11.91 mm N/A 0.003 in0.08 mm N/A -614 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182833
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 0.475 in12.07 mm N/A 0.005 in0.13 mm N/A -310 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182834
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 0.475 in12.07 mm N/A 0.005 in0.13 mm N/A -310 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182987
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 0.484 in12.29 mm N/A 0.004 in0.10 mm N/A -206 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182988
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 0.484 in12.29 mm N/A 0.004 in0.10 mm N/A -206 N/A N/A O-rings are used in the military defense and agriculture industries.v
N/A
183131
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 0.487 in12.37 mm N/A 0.003 in0.08 mm N/A -112 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183132
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 0.487 in12.37 mm N/A 0.003 in0.08 mm N/A -112 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183225
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 70 N/A 0.489 in12.42 mm N/A 0.003 in0.08 mm N/A -014 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183226
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 90 N/A 0.489 in12.42 mm N/A 0.003 in0.08 mm N/A -014 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182439
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 0.500 in12.70 mm N/A 0.003 in0.08 mm N/A -807 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182440
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 0.500 in12.70 mm N/A 0.003 in0.08 mm N/A -807 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182499
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 0.516 in13.11 mm N/A 0.003 in0.08 mm N/A -615 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182500
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 0.516 in13.11 mm N/A 0.003 in0.08 mm N/A -615 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182831
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 0.537 in13.64 mm N/A 0.005 in0.13 mm N/A -311 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182832
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 0.537 in13.64 mm N/A 0.005 in0.13 mm N/A -311 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183129
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 0.549 in13.94 mm N/A 0.003 in0.08 mm N/A -113 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183130
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 0.549 in13.94 mm N/A 0.003 in0.08 mm N/A -113 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182985
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 0.549 in13.94 mm N/A 0.004 in0.10 mm N/A -207 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182986
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 0.549 in13.94 mm N/A 0.004 in0.10 mm N/A -207 N/A N/A O-rings are used in the military defense and agriculture industries.
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