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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
BS842 U-70 N/A
182391 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 2.687 in68.25 mm N/A 0.004 in0.10 mm N/A -842 N/A N/A O-rings are used in the military defense and agriculture industries.
BS842 U-90 N/A
182392 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 2.687 in68.25 mm N/A 0.004 in0.10 mm N/A -842 N/A N/A O-rings are used in the military defense and agriculture industries.
BS841 U-70 N/A
182393 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 2.625 in66.68 mm N/A 0.004 in0.10 mm N/A -841 N/A N/A O-rings are used in the military defense and agriculture industries.
BS841 U-90 N/A
182394 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 2.625 in66.68 mm N/A 0.004 in0.10 mm N/A -841 N/A N/A O-rings are used in the military defense and agriculture industries.
BS840 U-70 N/A
182395 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 2.563 in65.1 mm N/A 0.004 in0.10 mm N/A -840 N/A N/A O-rings are used in the military defense and agriculture industries.
BS840 U-90 N/A
182396 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 2.563 in65.1 mm N/A 0.004 in0.10 mm N/A -840 N/A N/A O-rings are used in the military defense and agriculture industries.
BS839 U-70 N/A
182397 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 2.500 in63.50 mm N/A 0.004 in0.10 mm N/A -839 N/A N/A O-rings are used in the military defense and agriculture industries.
BS839 U-90 N/A
182398 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 2.500 in63.50 mm N/A 0.004 in0.10 mm N/A -839 N/A N/A O-rings are used in the military defense and agriculture industries.
BS838 U-70 N/A
182399 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 2.437 in61.90 mm N/A 0.004 in0.10 mm N/A -838 N/A N/A O-rings are used in the military defense and agriculture industries.
BS838 U-90 N/A
182400 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 2.437 in61.90 mm N/A 0.004 in0.10 mm N/A -838 N/A N/A O-rings are used in the military defense and agriculture industries.v
BS837 U-70 N/A
182401 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 2.375 in60.33 mm N/A 0.004 in0.10 mm N/A -837 N/A N/A O-rings are used in the military defense and agriculture industries.
BS837 U-90 N/A
182402 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 2.375 in60.33 mm N/A 0.004 in0.10 mm N/A -837 N/A N/A O-rings are used in the military defense and agriculture industries.
BS836 U-70 N/A
182403 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 2.313 in58.74 mm N/A 0.004 in0.10 mm N/A -836 N/A N/A O-rings are used in the military defense and agriculture industries.
BS836 U-90 N/A
182404 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 2.313 in58.74 mm N/A 0.004 in0.10 mm N/A -836 N/A N/A O-rings are used in the military defense and agriculture industries.
BS835 U-70 N/A
182405 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 2.25 in57.15 mm N/A 0.004 in0.10 mm N/A -835 N/A N/A O-rings are used in the military defense and agriculture industries.
BS835 U-90 N/A
182406 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 2.25 in57.15 mm N/A 0.004 in0.10 mm N/A -835 N/A N/A O-rings are used in the military defense and agriculture industries.
BS834 U-70 N/A
182407 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 2.187 in55.55 mm N/A 0.004 in0.10 mm N/A -834 N/A N/A O-rings are used in the military defense and agriculture industries.
BS834 U-90 N/A
182408 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 2.187 in55.55 mm N/A 0.004 in0.10 mm N/A -834 N/A N/A O-rings are used in the military defense and agriculture industries.
BS833 U-70 N/A
182409 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 2.125 in53.98 mm N/A 0.004 in0.10 mm N/A -833 N/A N/A O-rings are used in the military defense and agriculture industries.
BS833 U-90 N/A
182410 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 2.125 in53.98 mm N/A 0.004 in0.10 mm N/A -833 N/A N/A O-rings are used in the military defense and agriculture industries.
BS832 U-70 N/A
182411 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 2.063 in52.39 mm N/A 0.004 in0.10 mm N/A -832 N/A N/A O-rings are used in the military defense and agriculture industries.
BS832 U-90 N/A
182412 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 2.063 in52.39 mm N/A 0.004 in0.10 mm N/A -832 N/A N/A O-rings are used in the military defense and agriculture industries.
BS831 U-70 N/A
182413 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 2.000 in50.80 mm N/A 0.004 in0.10 mm N/A -831 N/A N/A O-rings are used in the military defense and agriculture industries.
BS831 U-90 N/A
182414 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 90 N/A 2.000 in50.80 mm N/A 0.004 in0.10 mm N/A -831 N/A N/A O-rings are used in the military defense and agriculture industries.v
BS830 U-70 N/A
182415 		N/A BS Standard O-Ring N/A Polyurethane N/A 0.139 in3.53 mm N/A 70 N/A 1.937 in49.20 mm N/A 0.004 in0.10 mm N/A -830 N/A N/A O-rings are used in the military defense and agriculture industries.
Unit of Measure
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