BS Fluorosilicone 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.For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.

Item #	IntegrationID	Type	Material	Cross Section Width	Durometer	Inside Diameter	CSW Tolerance	BS Number	Call for a Quote	O-Ring Industries
BS475 F-70	N/A 188948	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 15.475 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 F-70	N/A 188949	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 14.9751 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 F-70	N/A 188950	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 14.475 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 F-70	N/A 188951	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 13.9751 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 F-70	N/A 188952	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 13.475 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 F-70	N/A 188953	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 12.975 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 F-70	N/A 188954	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 12.475 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 F-70	N/A 188955	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 11.975 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 F-70	N/A 188956	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 11.475 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 F-70	N/A 188957	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 10.975 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 F-70	N/A 188958	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 10.475 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 F-70	N/A 188959	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 9.975 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 F-70	N/A 188960	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 9.475 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 F-70	N/A 188961	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 8.975 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 F-70	N/A 188962	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 8.475 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 F-70	N/A 188963	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 7.975 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 F-70	N/A 188964	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 7.725 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 F-70	N/A 188965	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 7.475 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 F-70	N/A 188966	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 7.225 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 F-70	N/A 188967	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 6.975 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 F-70	N/A 188968	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 6.725 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 F-70	N/A 188969	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 6.475 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 F-70	N/A 188970	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 6.225 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 F-70	N/A 188971	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 5.975 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 F-70	N/A 188972	N/A BS Standard O-Ring	N/A Flurosilicone	N/A 0.275 in6.99 mm	N/A 70	N/A 5.850 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.

N/A
188948

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 15.475 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 F-70

N/A
188949

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 14.9751 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 F-70

N/A
188950

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 14.475 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 F-70

N/A
188951

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 13.9751 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 F-70

N/A
188952

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 13.475 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 F-70

N/A
188953

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 12.975 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 F-70

N/A
188954

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 12.475 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 F-70

N/A
188955

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 11.975 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 F-70

N/A
188956

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 11.475 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 F-70

N/A
188957

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 10.975 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 F-70

N/A
188958

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 10.475 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 F-70

N/A
188959

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 9.975 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 F-70

N/A
188960

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 9.475 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 F-70

N/A
188961

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 8.975 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 F-70

N/A
188962

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 8.475 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 F-70

N/A
188963

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 7.975 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 F-70

N/A
188964

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 7.725 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 F-70

N/A
188965

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 7.475 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 F-70

N/A
188966

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 7.225 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 F-70

N/A
188967

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 6.975 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 F-70

N/A
188968

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 6.725 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 F-70

N/A
188969

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 6.475 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 F-70

N/A
188970

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 6.225 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 F-70

N/A
188971

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 5.975 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 F-70

N/A
188972

N/A BS Standard O-Ring

N/A Flurosilicone

N/A 0.275 in6.99 mm

N/A 70

N/A 5.850 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.