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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
BS107 EP-70 N/A
184130 		N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 0.206 in5.23 mm N/A 0.003 in0.08 mm N/A -107 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS106 EP-70 N/A
184131 		N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 0.175 in4.45 mm N/A 0.003 in0.08 mm N/A -106 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS105 EP-70 N/A
184132 		N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 0.143 in3.63 mm N/A 0.003 in0.08 mm N/A -105 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS104 EP-70 N/A
184133 		N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 0.112 in2.84 mm N/A 0.003 in0.08 mm N/A -104 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS103 EP-70 N/A
184134 		N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 0.081 in2.06 mm N/A 0.003 in0.08 mm N/A -103 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS102 EP-70 N/A
184135 		N/A BS Standard O-Ring N/A EP N/A 0.103 in2.62 mm N/A 70 N/A 0.049 in1.24 mm N/A 0.003 in0.08 mm N/A -102 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS50 EP-70 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.
BS49 EP-70 N/A
184137 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 4.989 in126.72 mm N/A 0.003 in0.08 mm N/A -049 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS48 EP-70 N/A
184138 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 4.739 in120.37 mm N/A 0.003 in0.08 mm N/A -048 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS47 EP-70 N/A
184139 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 4.489 in114.02 mm N/A 0.003 in0.08 mm N/A -047 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS46 EP-70 N/A
184140 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 4.239 in107.67 mm N/A 0.003 in0.08 mm N/A -046 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS45 EP-70 N/A
184141 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 3.989 in101.32 mm N/A 0.003 in0.08 mm N/A -045 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS44 EP-70 N/A
184142 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 3.739 in94.97 mm N/A 0.003 in0.08 mm N/A -044 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS43 EP-70 N/A
184143 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 3.489 in88.62 mm N/A 0.003 in0.08 mm N/A -043 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS42 EP-70 N/A
184144 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 3.239 in82.27 mm N/A 0.003 in0.08 mm N/A -042 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS41 EP-70 N/A
184145 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 2.989 in75.92 mm N/A 0.003 in0.08 mm N/A -041 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS40 EP-70 N/A
184146 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 2.864 in72.75 mm N/A 0.003 in0.08 mm N/A -040 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS39 EP-70 N/A
184147 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 2.739 in69.57 mm N/A 0.003 in0.08 mm N/A -039 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS38 EP-70 N/A
184148 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 2.614 in66.40 mm N/A 0.003 in0.08 mm N/A -038 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS37 EP-70 N/A
184149 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 2.489 in63.22 mm N/A 0.003 in0.08 mm N/A -037 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS36 EP-70 N/A
184150 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 2.364 in60.05 mm N/A 0.003 in0.08 mm N/A -036 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS35 EP-70 N/A
184151 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 2.239 in56.87 mm N/A 0.003 in0.08 mm N/A -035 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS34 EP-70 N/A
184152 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 2.114 in53.70 mm N/A 0.003 in0.08 mm N/A -034 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS33 EP-70 N/A
184153 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 1.989 in50.52 mm N/A 0.003 in0.08 mm N/A -033 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS32 EP-70 N/A
184154 		N/A BS Standard O-Ring N/A EP N/A 0.070 in1.78 mm N/A 70 N/A 1.864 in47.35 mm N/A 0.003 in0.08 mm N/A -032 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
Unit of Measure
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