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.
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O-Ring Industries

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N/A
183742
N/A BS Standard O-Ring N/A EP N/A 0.210 in5.33 mm N/A 70 N/A 5.625 in142.88 mm N/A 0.005 in0.13 mm N/A -868 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
184004
N/A BS Standard O-Ring N/A EP N/A 0.139 in3.53 mm N/A 70 N/A 5.609 in142.47 mm N/A 0.004 in0.10 mm N/A -255 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
183881
N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 5.600 in142.24 mm N/A 0.006 in0.15 mm N/A -434 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
183928
N/A BS Standard O-Ring N/A EP N/A 0.210 in5.33 mm N/A 70 N/A 5.600 in142.24 mm N/A 0.005 in0.13 mm N/A -358 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
183826
N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 5.595 in142.11 mm N/A 0.003 in0.08 mm N/A -552 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
183743
N/A BS Standard O-Ring N/A EP N/A 0.210 in5.33 mm N/A 70 N/A 5.5 in139.70 mm N/A 0.005 in0.13 mm N/A -867 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
184076
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 5.487 in139.37 mm N/A 0.003 in0.08 mm N/A -161 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
184005
N/A BS Standard O-Ring N/A EP N/A 0.139 in3.53 mm N/A 70 N/A 5.484 in139.29 mm N/A 0.004 in0.10 mm N/A -254 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
183882
N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 5.475 in139.07 mm N/A 0.006 in0.15 mm N/A -433 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
183929
N/A BS Standard O-Ring N/A EP N/A 0.210 in5.33 mm N/A 70 N/A 5.475 in139.07 mm N/A 0.005 in0.13 mm N/A -357 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
183827
N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 5.47 in138.94 mm N/A 0.003 in0.08 mm N/A -551 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
183744
N/A BS Standard O-Ring N/A EP N/A 0.210 in5.33 mm N/A 70 N/A 5.375 in136.53 mm N/A 0.005 in0.13 mm N/A -866 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
184006
N/A BS Standard O-Ring N/A EP N/A 0.139 in3.53 mm N/A 70 N/A 5.359 in136.12 mm N/A 0.004 in0.10 mm N/A -253 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
183883
N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 5.350 in135.89 mm N/A 0.006 in0.15 mm N/A -432 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
183930
N/A BS Standard O-Ring N/A EP N/A 0.210 in5.33 mm N/A 70 N/A 5.350 in135.89 mm N/A 0.005 in0.13 mm N/A -356 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
183828
N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 5.345 in135.76 mm N/A 0.003 in0.08 mm N/A -550 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
183798
N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 5.297 in134.54 mm N/A 0.006 in0.15 mm N/A -626 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
183745
N/A BS Standard O-Ring N/A EP N/A 0.210 in5.33 mm N/A 70 N/A 5.25 in133.35 mm N/A 0.005 in0.13 mm N/A -865 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
184136
N/A BS Standard O-Ring N/A EP 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, automotive, aerospace and agriculture industries.
N/A
184077
N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 5.237 in133.02 mm N/A 0.003 in0.08 mm N/A -160 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
184007
N/A BS Standard O-Ring N/A EP N/A 0.139 in3.53 mm N/A 70 N/A 5.234 in132.94 mm N/A 0.004 in0.10 mm N/A -252 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
183884
N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 5.225 in132.72 mm N/A 0.006 in0.15 mm N/A -431 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
183931
N/A BS Standard O-Ring N/A EP N/A 0.210 in5.33 mm N/A 70 N/A 5.225 in132.72 mm N/A 0.005 in0.13 mm N/A -355 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
183746
N/A BS Standard O-Ring N/A EP N/A 0.210 in5.33 mm N/A 70 N/A 5.125 in130.18 mm N/A 0.005 in0.13 mm N/A -864 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
N/A
184008
N/A BS Standard O-Ring N/A EP N/A 0.139 in3.53 mm N/A 70 N/A 5.109 in129.77 mm N/A 0.004 in0.10 mm N/A -251 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
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