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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.
BS O-Rings
Unit of Measure
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Item #

IntegrationID

Type

Material

Cross Section Width

Durometer

Inside Diameter

CSW Tolerance

BS Number

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O-Ring Industries

Quantity
BS107 U-70 N/A
183141 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 0.206 in5.23 mm N/A 0.003 in0.08 mm N/A -107 N/A N/A O-rings are used in the military defense and agriculture industries.
BS107 U-90 N/A
183142 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 0.206 in5.23 mm N/A 0.003 in0.08 mm N/A -107 N/A N/A O-rings are used in the military defense and agriculture industries.
BS106 U-70 N/A
183143 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 0.175 in4.45 mm N/A 0.003 in0.08 mm N/A -106 N/A N/A O-rings are used in the military defense and agriculture industries.
BS106 U-90 N/A
183144 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 0.175 in4.45 mm N/A 0.003 in0.08 mm N/A -106 N/A N/A O-rings are used in the military defense and agriculture industries.
BS105 U-70 N/A
183145 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 0.143 in3.63 mm N/A 0.003 in0.08 mm N/A -105 N/A N/A O-rings are used in the military defense and agriculture industries.
BS105 U-90 N/A
183146 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 0.143 in3.63 mm N/A 0.003 in0.08 mm N/A -105 N/A N/A O-rings are used in the military defense and agriculture industries.
BS104 U-70 N/A
183147 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 0.112 in2.84 mm N/A 0.003 in0.08 mm N/A -104 N/A N/A O-rings are used in the military defense and agriculture industries.
BS104 U-90 N/A
183148 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 0.112 in2.84 mm N/A 0.003 in0.08 mm N/A -104 N/A N/A O-rings are used in the military defense and agriculture industries.
BS103 U-70 N/A
183149 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 0.081 in2.06 mm N/A 0.003 in0.08 mm N/A -103 N/A N/A O-rings are used in the military defense and agriculture industries.
BS103 U-90 N/A
183150 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 0.081 in2.06 mm N/A 0.003 in0.08 mm N/A -103 N/A N/A O-rings are used in the military defense and agriculture industries.
BS102 U-70 N/A
183151 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 70 N/A 0.049 in1.24 mm N/A 0.003 in0.08 mm N/A -102 N/A N/A O-rings are used in the military defense and agriculture industries.
BS102 U-90 N/A
183152 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.103 in2.62 mm N/A 90 N/A 0.049 in1.24 mm N/A 0.003 in0.08 mm N/A -102 N/A N/A O-rings are used in the military defense and agriculture industries.v
BS50 U-70 N/A
183153 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 70 N/A 5.239 in133.07 mm N/A 0.003 in0.08 mm N/A -050 N/A N/A O-rings are used in the military defense and agriculture industries.
BS50 U-90 N/A
183154 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 90 N/A 5.239 in133.07 mm N/A 0.003 in0.08 mm N/A -050 N/A N/A O-rings are used in the military defense and agriculture industries.
BS49 U-70 N/A
183155 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 70 N/A 4.989 in126.72 mm N/A 0.003 in0.08 mm N/A -049 N/A N/A O-rings are used in the military defense and agriculture industries.
BS49 U-90 N/A
183156 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 90 N/A 4.989 in126.72 mm N/A 0.003 in0.08 mm N/A -049 N/A N/A O-rings are used in the military defense and agriculture industries.
BS48 U-70 N/A
183157 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 70 N/A 4.739 in120.37 mm N/A 0.003 in0.08 mm N/A -048 N/A N/A O-rings are used in the military defense and agriculture industries.
BS48 U-90 N/A
183158 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 90 N/A 4.739 in120.37 mm N/A 0.003 in0.08 mm N/A -048 N/A N/A O-rings are used in the military defense and agriculture industries.
BS47 U-70 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.
BS47 U-90 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.
BS46 U-70 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.
BS46 U-90 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.
BS45 U-70 N/A
183163 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 70 N/A 3.989 in101.32 mm N/A 0.003 in0.08 mm N/A -045 N/A N/A O-rings are used in the military defense and agriculture industries.
BS45 U-90 N/A
183164 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 90 N/A 3.989 in101.32 mm N/A 0.003 in0.08 mm N/A -045 N/A N/A O-rings are used in the military defense and agriculture industries.
BS44 U-70 N/A
183165 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.070 in1.78 mm N/A 70 N/A 3.739 in94.97 mm N/A 0.003 in0.08 mm N/A -044 N/A N/A O-rings are used in the military defense and agriculture industries.
Unit of Measure
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