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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
BS6 EP-70 N/A
184180 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 0.114 in2.90 mm N/A 0.003 in0.08 mm N/A -006 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS5 EP-70 N/A
184181 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 0.101 in2.57 mm N/A 0.003 in0.08 mm N/A -005 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS4 EP-70 N/A
184182 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 0.070 in1.78 mm N/A 0.003 in0.08 mm N/A -004 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS3 EP-70 N/A
184183 		N/A BS Standard O-Ring N/A EP N/A 0.060 in1.52 mm N/A 70 N/A 0.056 in1.42 mm N/A 0.003 in0.08 mm N/A -003 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS2 EP-70 N/A
184184 		N/A BS Standard O-Ring N/A EP N/A 0.050 in1.27 mm N/A 70 N/A 0.042 in1.07 mm N/A 0.003 in0.08 mm N/A -002 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS445A EP-70 N/A
184185 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 8.225 in208.92 mm N/A 0.006 in0.15 mm N/A -445A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS446A EP-70 N/A
184186 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 8.725 in221.62 mm N/A 0.006 in0.15 mm N/A -446A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS447A EP-70 N/A
184187 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 9.225 in234.32 mm N/A 0.006 in0.15 mm N/A -447A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS448A EP-70 N/A
184188 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 9.725 in247.02 mm N/A 0.006 in0.15 mm N/A -448A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS449A EP-70 N/A
184189 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 10.225 in259.72 mm N/A 0.006 in0.15 mm N/A -449A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS450A EP-70 N/A
184190 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 10.725 in272.42 mm N/A 0.006 in0.15 mm N/A -450A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS451A EP-70 N/A
184191 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 11.225 in285.12 mm N/A 0.006 in0.15 mm N/A -451A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS452A EP-70 N/A
184192 		N/A BS Standard O-Ring N/A EP N/A 0.275 in6.99 mm N/A 70 N/A 11.725 in297.82 mm N/A 0.006 in0.15 mm N/A -452A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
Unit of Measure
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