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
182963
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 1.234 in31.34 mm N/A 0.004 in0.10 mm N/A -218 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182964
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 1.234 in31.34 mm N/A 0.004 in0.10 mm N/A -218 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183107
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 1.237 in31.42 mm N/A 0.003 in0.08 mm N/A -124 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183108
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 1.237 in31.42 mm N/A 0.003 in0.08 mm N/A -124 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183201
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 70 N/A 1.239 in31.47 mm N/A 0.003 in0.08 mm N/A -026 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183202
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 90 N/A 1.239 in31.47 mm N/A 0.003 in0.08 mm N/A -026 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182807
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 1.287 in32.69 mm N/A 0.005 in0.13 mm N/A -323 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182808
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 1.287 in32.69 mm N/A 0.005 in0.13 mm N/A -323 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182961
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 1.296 in32.92 mm N/A 0.004 in0.10 mm N/A -219 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182962
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 1.296 in32.92 mm N/A 0.004 in0.10 mm N/A -219 N/A N/A O-rings are used in the military defense and agriculture industries.v
N/A
183105
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 1.299 in32.99 mm N/A 0.003 in0.08 mm N/A -125 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183106
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 1.299 in32.99 mm N/A 0.003 in0.08 mm N/A -125 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183199
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 70 N/A 1.301 in33.05 mm N/A 0.003 in0.08 mm N/A -027 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183200
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 90 N/A 1.301 in33.05 mm N/A 0.003 in0.08 mm N/A -027 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182805
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 1.350 in34.29 mm N/A 0.005 in0.13 mm N/A -324 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182806
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 1.350 in34.29 mm N/A 0.005 in0.13 mm N/A -324 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182959
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 1.359 in34.52 mm N/A 0.004 in0.10 mm N/A -220 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182960
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 1.359 in34.52 mm N/A 0.004 in0.10 mm N/A -220 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183103
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 1.362 in34.59 mm N/A 0.003 in0.08 mm N/A -126 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183104
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 1.362 in34.59 mm N/A 0.003 in0.08 mm N/A -126 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183197
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 70 N/A 1.364 in34.65 mm N/A 0.003 in0.08 mm N/A -028 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183198
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 90 N/A 1.364 in34.65 mm N/A 0.003 in0.08 mm N/A -028 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182957
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 1.421 in36.09 mm N/A 0.004 in0.10 mm N/A -221 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182958
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 1.421 in36.09 mm N/A 0.004 in0.10 mm N/A -221 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183101
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 1.424 in36.17 mm N/A 0.003 in0.08 mm N/A -127 N/A N/A O-rings are used in the military defense and agriculture industries.
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