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
182496
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 0.703 in17.86 mm N/A 0.003 in0.08 mm N/A -617 N/A N/A O-rings are used in the military defense and agriculture industries.v
N/A
182825
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 0.725 in18.42 mm N/A 0.005 in0.13 mm N/A -314 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182826
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 0.725 in18.42 mm N/A 0.005 in0.13 mm N/A -314 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182979
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 0.734 in18.64 mm N/A 0.004 in0.10 mm N/A -210 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182980
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 0.734 in18.64 mm N/A 0.004 in0.10 mm N/A -210 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183123
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 0.737 in18.72 mm N/A 0.003 in0.08 mm N/A -116 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183124
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 0.737 in18.72 mm N/A 0.003 in0.08 mm N/A -116 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183217
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 70 N/A 0.739 in18.77 mm N/A 0.003 in0.08 mm N/A -018 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183218
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 90 N/A 0.739 in18.77 mm N/A 0.003 in0.08 mm N/A -018 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182823
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 0.787 in19.99 mm N/A 0.005 in0.13 mm N/A -315 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182824
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 0.787 in19.99 mm N/A 0.005 in0.13 mm N/A -315 N/A N/A O-rings are used in the military defense and agriculture industries.v
N/A
182977
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 0.796 in20.22 mm N/A 0.004 in0.10 mm N/A -211 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182978
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 0.796 in20.22 mm N/A 0.004 in0.10 mm N/A -211 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183121
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 0.799 in20.29 mm N/A 0.003 in0.08 mm N/A -117 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183122
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 0.799 in20.29 mm N/A 0.003 in0.08 mm N/A -117 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183215
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 70 N/A 0.801 in20.35 mm N/A 0.003 in0.08 mm N/A -019 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183216
N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 90 N/A 0.801 in20.35 mm N/A 0.003 in0.08 mm N/A -019 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182433
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 0.812 in20.62 mm N/A 0.003 in0.08 mm N/A -812 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182434
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 0.812 in20.62 mm N/A 0.003 in0.08 mm N/A -812 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182821
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 70 N/A 0.850 in21.59 mm N/A 0.005 in0.13 mm N/A -316 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182822
N/A BS Standard O-Ring N/A Polyurethane N/A 0.210 in5.33 mm N/A 90 N/A 0.850 in21.59 mm N/A 0.005 in0.13 mm N/A -316 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182975
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 0.859 in21.82 mm N/A 0.004 in0.10 mm N/A -212 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
182976
N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 0.859 in21.82 mm N/A 0.004 in0.10 mm N/A -212 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183119
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 0.862 in21.89 mm N/A 0.003 in0.08 mm N/A -118 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
183120
N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 0.862 in21.89 mm N/A 0.003 in0.08 mm N/A -118 N/A N/A O-rings are used in the military defense and agriculture industries.
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