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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. EP is also known as: Eythylene Propylene, EPR, EPDM, EPT, E.

EP is an elastomer which is characterized by wide range of applications and good chemical resistance. Ethylene propylene compounds have good resistance to detergents, alkalis, mild acids, greases, silicone oils, and alcohols.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
BS546 EP-70 N/A
183830 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 4.86 in123.44 mm N/A 0.003 in0.08 mm N/A -546 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS544 EP-70 N/A
183831 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 4.61 in117.09 mm N/A 0.003 in0.08 mm N/A -544 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS542 EP-70 N/A
183832 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 4.36 in110.74 mm N/A 0.003 in0.08 mm N/A -542 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS540 EP-70 N/A
183833 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 4.110 in104.39 mm N/A 0.003 in0.08 mm N/A -540 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS538 EP-70 N/A
183834 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 3.86 in98.04 mm N/A 0.003 in0.08 mm N/A -538 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS536 EP-70 N/A
183835 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 3.61 in91.69 mm N/A 0.003 in0.08 mm N/A -536 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS534 EP-70 N/A
183836 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 3.36 in85.34 mm N/A 0.003 in0.08 mm N/A -534 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS532 EP-70 N/A
183837 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 3.11 in78.99 mm N/A 0.003 in0.08 mm N/A -532 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS519 EP-70 N/A
183838 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 1.553 in39.45 mm N/A 0.003 in0.08 mm N/A -519 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS517 EP-70 N/A
183839 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 1.428 in36.27 mm N/A 0.003 in0.08 mm N/A -517 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS475 EP-70 N/A
183840 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 25.9401 in658.88 mm N/A 0.006 in0.15 mm N/A -475 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS474 EP-70 N/A
183841 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 24.940 in633.48 mm N/A 0.006 in0.15 mm N/A -474 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS473 EP-70 N/A
183842 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 23.940 in608.08 mm N/A 0.006 in0.15 mm N/A -473 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS472 EP-70 N/A
183843 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 22.940 in582.68 mm N/A 0.006 in0.15 mm N/A -472 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS471 EP-70 N/A
183844 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 21.955 in557.66 mm N/A 0.006 in0.15 mm N/A -471 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS470 EP-70 N/A
183845 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 20.955 in532.26 mm N/A 0.006 in0.15 mm N/A -470 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS469 EP-70 N/A
183846 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 19.955 in506.86 mm N/A 0.006 in0.15 mm N/A -469 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS468 EP-70 N/A
183847 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 19.455 in494.16 mm N/A 0.006 in0.15 mm N/A -468 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS467 EP-70 N/A
183848 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 18.955 in481.46 mm N/A 0.006 in0.15 mm N/A -467 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS466 EP-70 N/A
183849 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 18.455 in468.76 mm N/A 0.006 in0.15 mm N/A -466 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS465 EP-70 N/A
183850 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 17.955 in456.06 mm N/A 0.006 in0.15 mm N/A -465 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS464 EP-70 N/A
183851 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 17.455 in443.36 mm N/A 0.006 in0.15 mm N/A -464 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS463 EP-70 N/A
183852 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 16.9551 in430.66 mm N/A 0.006 in0.15 mm N/A -463 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS462 EP-70 N/A
183853 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 16.455 in417.96 mm N/A 0.006 in0.15 mm N/A -462 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS461 EP-70 N/A
183854 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 15.9551 in405.26 mm N/A 0.006 in0.15 mm N/A -461 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
Unit of Measure
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