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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. Neoprene is also known as Chloroprene.

Neoprene resists fats, oils and petroleum products. Stands up well in sunlight. Low flammability - burns when exposed to flames, but self-extinguishes when flame is removed. Generally good ozone, aging and chemical resistance. It has good mechanical properties over a wide temperature range. 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
BS356 C-70 N/A
183467
N/A BS Standard O-Ring N/A Neoprene 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 defense and agriculture industries.
BS355 C-70 N/A
183468
N/A BS Standard O-Ring N/A Neoprene 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 defense and agriculture industries.
BS354 C-70 N/A
183469
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 5.100 in129.54 mm N/A 0.005 in0.13 mm N/A -354 N/A N/A O-rings are used in the military defense and agriculture industries.
BS353 C-70 N/A
183470
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 4.975 in126.37 mm N/A 0.005 in0.13 mm N/A -353 N/A N/A O-rings are used in the military defense and agriculture industries.
BS352 C-70 N/A
183471
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 4.850 in123.19 mm N/A 0.005 in0.13 mm N/A -352 N/A N/A O-rings are used in the military defense and agriculture industries.
BS351 C-70 N/A
183472
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 4.725 in120.02 mm N/A 0.005 in0.13 mm N/A -351 N/A N/A O-rings are used in the military defense and agriculture industries.
BS350 C-70 N/A
183473
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 4.600 in116.84 mm N/A 0.005 in0.13 mm N/A -350 N/A N/A O-rings are used in the military defense and agriculture industries.
BS349 C-70 N/A
183474
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 4.475 in113.67 mm N/A 0.005 in0.13 mm N/A -349 N/A N/A O-rings are used in the military defense and agriculture industries.
BS348 C-70 N/A
183475
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 4.350 in110.49 mm N/A 0.005 in0.13 mm N/A -348 N/A N/A O-rings are used in the military defense and agriculture industries.
BS347 C-70 N/A
183476
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 4.225 in107.32 mm N/A 0.005 in0.13 mm N/A -347 N/A N/A O-rings are used in the military defense and agriculture industries.
BS346 C-70 N/A
183477
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 4.100 in104.14 mm N/A 0.005 in0.13 mm N/A -346 N/A N/A O-rings are used in the military defense and agriculture industries.
BS345 C-70 N/A
183478
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 3.975 in100.97 mm N/A 0.005 in0.13 mm N/A -345 N/A N/A O-rings are used in the military defense and agriculture industries.v
BS344 C-70 N/A
183479
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 3.850 in97.79 mm N/A 0.005 in0.13 mm N/A -344 N/A N/A O-rings are used in the military defense and agriculture industries.
BS343 C-70 N/A
183480
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 3.725 in94.62 mm N/A 0.005 in0.13 mm N/A -343 N/A N/A O-rings are used in the military defense and agriculture industries.
BS342 C-70 N/A
183481
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 3.600 in91.44 mm N/A 0.005 in0.13 mm N/A -342 N/A N/A O-rings are used in the military defense and agriculture industries.
BS341 C-70 N/A
183482
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 3.475 in88.27 mm N/A 0.005 in0.13 mm N/A -341 N/A N/A O-rings are used in the military defense and agriculture industries.
BS340 C-70 N/A
183483
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 3.350 in85.09 mm N/A 0.005 in0.13 mm N/A -340 N/A N/A O-rings are used in the military defense and agriculture industries.
BS339 C-70 N/A
183484
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 3.225 in81.92 mm N/A 0.005 in0.13 mm N/A -339 N/A N/A O-rings are used in the military defense and agriculture industries.
BS338 C-70 N/A
183485
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 3.100 in78.74 mm N/A 0.005 in0.13 mm N/A -338 N/A N/A O-rings are used in the military defense and agriculture industries.
BS337 C-70 N/A
183486
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 2.975 in75.57 mm N/A 0.005 in0.13 mm N/A -337 N/A N/A O-rings are used in the military defense and agriculture industries.
BS336 C-70 N/A
183487
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 2.850 in72.39 mm N/A 0.005 in0.13 mm N/A -336 N/A N/A O-rings are used in the military defense and agriculture industries.
BS335 C-70 N/A
183488
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 2.725 in69.22 mm N/A 0.005 in0.13 mm N/A -335 N/A N/A O-rings are used in the military defense and agriculture industries.
BS334 C-70 N/A
183489
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 2.600 in66.04 mm N/A 0.005 in0.13 mm N/A -334 N/A N/A O-rings are used in the military defense and agriculture industries.
BS333 C-70 N/A
183490
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 2.475 in62.87 mm N/A 0.005 in0.13 mm N/A -333 N/A N/A O-rings are used in the military defense and agriculture industries.v
BS332 C-70 N/A
183491
N/A BS Standard O-Ring N/A Neoprene N/A 0.210 in5.33 mm N/A 70 N/A 2.350 in59.69 mm N/A 0.005 in0.13 mm N/A -332 N/A N/A O-rings are used in the military defense and agriculture industries.
Unit of Measure
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