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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
BS31 EP-70 N/A
184155 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 1.739 in44.17 mm N/A 0.003 in0.08 mm N/A -031 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS30 EP-70 N/A
184156 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 1.614 in41.00 mm N/A 0.003 in0.08 mm N/A -030 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS29 EP-70 N/A
184157 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 1.489 in37.82 mm N/A 0.003 in0.08 mm N/A -029 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS28 EP-70 N/A
184158 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 1.364 in34.65 mm N/A 0.003 in0.08 mm N/A -028 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS27 EP-70 N/A
184159 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 1.301 in33.05 mm N/A 0.003 in0.08 mm N/A -027 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS26 EP-70 N/A
184160 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 1.239 in31.47 mm N/A 0.003 in0.08 mm N/A -026 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS25 EP-70 N/A
184161 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 1.176 in29.87 mm N/A 0.003 in0.08 mm N/A -025 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS24 EP-70 N/A
184162 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 1.114 in28.30 mm N/A 0.003 in0.08 mm N/A -024 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS23 EP-70 N/A
184163 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 1.051 in26.70 mm N/A 0.003 in0.08 mm N/A -023 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS22 EP-70 N/A
184164 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 0.989 in25.12 mm N/A 0.003 in0.08 mm N/A -022 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS21 EP-70 N/A
184165 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 0.926 in23.52 mm N/A 0.003 in0.08 mm N/A -021 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS20 EP-70 N/A
184166 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 0.864 in21.95 mm N/A 0.003 in0.08 mm N/A -020 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS19 EP-70 N/A
184167 		N/A BS Standard O-Ring N/A EP 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, automotive, aerospace and agriculture industries.
BS18 EP-70 N/A
184168 		N/A BS Standard O-Ring N/A EP 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, automotive, aerospace and agriculture industries.
BS17 EP-70 N/A
184169 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 0.676 in17.17 mm N/A 0.003 in0.08 mm N/A -017 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS16 EP-70 N/A
184170 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 0.614 in15.6 mm N/A 0.003 in0.08 mm N/A -016 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS15 EP-70 N/A
184171 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 0.551 in14.00 mm N/A 0.003 in0.08 mm N/A -015 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS14 EP-70 N/A
184172 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 0.489 in12.42 mm N/A 0.003 in0.08 mm N/A -014 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS13 EP-70 N/A
184173 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 0.426 in10.82 mm N/A 0.003 in0.08 mm N/A -013 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS12 EP-70 N/A
184174 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 0.364 in9.25 mm N/A 0.003 in0.08 mm N/A -012 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS11 EP-70 N/A
184175 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 0.301 in7.65 mm N/A 0.003 in0.08 mm N/A -011 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS10 EP-70 N/A
184176 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 0.239 in6.07 mm N/A 0.003 in0.08 mm N/A -010 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS9 EP-70 N/A
184177 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 0.208 in5.28 mm N/A 0.003 in0.08 mm N/A -009 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS8 EP-70 N/A
184178 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 0.176 in4.47 mm N/A 0.003 in0.08 mm N/A -008 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS7 EP-70 N/A
184179 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 0.145 in3.68 mm N/A 0.003 in0.08 mm N/A -007 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
Unit of Measure
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