• BS O-Rings
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. Buna is also known as: Nitrile, NBR, N, Buna-N.

Nitrile, chemically, is a copolymer of butadiene and acrylonitrile. Acrylonitrile content is varied in commercial products from 18% to 48%. As the nitrile content increases, resistance to petroleum base oils and hydrocarbon fuels increases, but low temperature flexibility decreases.

Due to its excellent resistance to petroleum products, and its ability to be compounded for service over a temperature range of -65 to +275°F(-54 to +135°C), nitrile is the most widely used elastomer in the seal industry today.

Inherently nitrile does not possess good resistance to ozone, sunlight or weather, but this can be substantially improved through compounding.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
184347 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 0.703 in17.86 mm N/A 0.003 in0.08 mm N/A -617 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184348 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 0.703 in17.86 mm N/A 0.003 in0.08 mm N/A -617 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184349 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 0.594 in15.09 mm N/A 0.003 in0.08 mm N/A -616 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184350 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 0.594 in15.09 mm N/A 0.003 in0.08 mm N/A -616 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184351 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 0.516 in13.11 mm N/A 0.003 in0.08 mm N/A -615 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184352 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 0.516 in13.11 mm N/A 0.003 in0.08 mm N/A -615 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184353 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 0.469 in11.91 mm N/A 0.003 in0.08 mm N/A -614 N/A N/A O-rings are used in the military defense and agriculture industries.v
N/A
184354 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 0.469 in11.91 mm N/A 0.003 in0.08 mm N/A -614 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184355 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 0.391 in9.93 mm N/A 0.003 in0.08 mm N/A -613 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184356 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 0.391 in9.93 mm N/A 0.003 in0.08 mm N/A -613 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184357 		N/A BS Standard O-Ring N/A Buna N/A 0.070 in1.78 mm N/A 70 N/A 0.344 in8.74 mm N/A 0.003 in0.08 mm N/A -611 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184358 		N/A BS Standard O-Ring N/A Buna N/A 0.070 in1.78 mm N/A 90 N/A 0.344 in8.74 mm N/A 0.003 in0.08 mm N/A -611 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184359 		N/A BS Standard O-Ring N/A Buna N/A 0.070 in1.78 mm N/A 70 N/A 0.266 in6.76 mm N/A 0.003 in0.08 mm N/A -610 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184360 		N/A BS Standard O-Ring N/A Buna N/A 0.070 in1.78 mm N/A 90 N/A 0.266 in6.76 mm N/A 0.003 in0.08 mm N/A -610 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184361 		N/A BS Standard O-Ring N/A Buna N/A 0.040 in1.02 mm N/A 70 N/A 0.100 in2.54 mm N/A 0.003 in0.08 mm N/A -607 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184362 		N/A BS Standard O-Ring N/A Buna N/A 0.040 in1.02 mm N/A 90 N/A 0.100 in2.54 mm N/A 0.003 in0.08 mm N/A -607 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184363 		N/A BS Standard O-Ring N/A Buna N/A 0.040 in1.02 mm N/A 70 N/A 0.070 in1.78 mm N/A 0.003 in0.08 mm N/A -606 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184364 		N/A BS Standard O-Ring N/A Buna N/A 0.040 in1.02 mm N/A 90 N/A 0.070 in1.78 mm N/A 0.003 in0.08 mm N/A -606 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184365 		N/A BS Standard O-Ring N/A Buna N/A 0.070 in1.78 mm N/A 70 N/A 6.845 in173.86 mm N/A 0.003 in0.08 mm N/A -562 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184366 		N/A BS Standard O-Ring N/A Buna N/A 0.070 in1.78 mm N/A 90 N/A 6.845 in173.86 mm N/A 0.003 in0.08 mm N/A -562 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184367 		N/A BS Standard O-Ring N/A Buna N/A 0.070 in1.78 mm N/A 70 N/A 6.72 in170.69 mm N/A 0.003 in0.08 mm N/A -561 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184368 		N/A BS Standard O-Ring N/A Buna N/A 0.070 in1.78 mm N/A 90 N/A 6.72 in170.69 mm N/A 0.003 in0.08 mm N/A -561 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184369 		N/A BS Standard O-Ring N/A Buna N/A 0.070 in1.78 mm N/A 70 N/A 6.695 in170.05 mm N/A 0.003 in0.08 mm N/A -560 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184370 		N/A BS Standard O-Ring N/A Buna N/A 0.070 in1.78 mm N/A 90 N/A 6.695 in170.05 mm N/A 0.003 in0.08 mm N/A -560 N/A N/A O-rings are used in the military defense and agriculture industries.
N/A
184371 		N/A BS Standard O-Ring N/A Buna N/A 0.070 in1.78 mm N/A 70 N/A 6.470 in164.34 mm N/A 0.003 in0.08 mm N/A -559 N/A N/A O-rings are used in the military defense and agriculture industries.
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