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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.

This elastomer is a copolymer of Tetrafluoroethylene (TFE) and propylene. Its chemical resistance is excellent across a wide range of aggressive media.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
BS475 AFLAS-75 N/A
186633
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 15.48 in393.07 mm N/A 0.006 in0.15 mm N/A -475 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS459 AFLAS-75 N/A
186634
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 14.98 in380.37 mm N/A 0.006 in0.15 mm N/A -459 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS458 AFLAS-75 N/A
186635
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 14.48 in367.67 mm N/A 0.006 in0.15 mm N/A -458 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS457 AFLAS-75 N/A
186636
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 13.98 in354.97 mm N/A 0.006 in0.15 mm N/A -457 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS456 AFLAS-75 N/A
186637
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 13.48 in342.27 mm N/A 0.006 in0.15 mm N/A -456 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS455 AFLAS-75 N/A
186638
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 12.98 in329.57 mm N/A 0.006 in0.15 mm N/A -455 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS454 AFLAS-75 N/A
186639
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 12.48 in316.87 mm N/A 0.006 in0.15 mm N/A -454 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS453 AFLAS-75 N/A
186640
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 11.98 in304.17 mm N/A 0.006 in0.15 mm N/A -453 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS452 AFLAS-75 N/A
186641
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 11.48 in291.47 mm N/A 0.006 in0.15 mm N/A -452 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS451 AFLAS-75 N/A
186642
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 10.98 in278.77 mm N/A 0.006 in0.15 mm N/A -451 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS450 AFLAS-75 N/A
186643
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 10.48 in266.07 mm N/A 0.006 in0.15 mm N/A -450 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS449 AFLAS-75 N/A
186644
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 9.98 in253.37 mm N/A 0.006 in0.15 mm N/A -449 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS448 AFLAS-75 N/A
186645
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 9.48 in240.67 mm N/A 0.006 in0.15 mm N/A -448 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS447 AFLAS-75 N/A
186646
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 8.98 in227.97 mm N/A 0.006 in0.15 mm N/A -447 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS446 AFLAS-75 N/A
186647
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 8.48 in215.27 mm N/A 0.006 in0.15 mm N/A -446 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS445 AFLAS-75 N/A
186648
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 7.98 in202.57 mm N/A 0.006 in0.15 mm N/A -445 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS444 AFLAS-75 N/A
186649
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 7.73 in196.22 mm N/A 0.006 in0.15 mm N/A -444 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS443 AFLAS-75 N/A
186650
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 7.48 in189.87 mm N/A 0.006 in0.15 mm N/A -443 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS442 AFLAS-75 N/A
186651
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 7.23 in183.52 mm N/A 0.006 in0.15 mm N/A -442 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS441 AFLAS-75 N/A
186652
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 6.98 in177.17 mm N/A 0.006 in0.15 mm N/A -441 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS440 AFLAS-75 N/A
186653
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 6.73 in170.82 mm N/A 0.006 in0.15 mm N/A -440 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS439 AFLAS-75 N/A
186654
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 6.48 in164.47 mm N/A 0.006 in0.15 mm N/A -439 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS438 AFLAS-75 N/A
186655
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 6.23 in158.12 mm N/A 0.006 in0.15 mm N/A -438 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS437 AFLAS-75 N/A
186656
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 5.98 in151.77 mm N/A 0.006 in0.15 mm N/A -437 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS436 AFLAS-75 N/A
186657
N/A BS Standard O-Ring N/A Aflas N/A 0.275 in6.99 mm N/A 75 N/A 5.85 in148.59 mm N/A 0.006 in0.15 mm N/A -436 N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
Unit of Measure
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