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O-Rings

FSC 5331: O-Rings

Federal Supply Class (FSC) 5331 covers O-rings, the round-section elastomeric seals used to seal static and dynamic joints. The catalog includes O-rings built to AS568, MIL-SPEC, and industry standards.

O-rings seal connections in hydraulic, pneumatic, fuel, and fluid systems by compressing in a groove. They are among the most widely used sealing elements in machinery.

Common materials include nitrile (Buna-N), fluorocarbon (Viton), silicone, EPDM, and PTFE, selected for fluid compatibility and temperature range. Sizes follow standard dash-number series for repeatable replacement.

5331-01-009-7041 (676-00259)

NIIN: 01-009-7041
In stock
NSN: 5331-01-009-7041
FSC Code: 5331
MPN: 67600259

5331-01-285-9258 (676-00903)

NIIN: 01-285-9258
In stock
NSN: 5331-01-285-9258
FSC Code: 5331
MPN: 67600903

5331-01-285-6880 (676-00244)

NIIN: 01-285-6880
In stock
NSN: 5331-01-285-6880
FSC Code: 5331
MPN: 67600244

5331-01-031-7108 (676-00222)

NIIN: 01-031-7108
In stock
NSN: 5331-01-031-7108
FSC Code: 5331
MPN: 67600222

5331-01-285-9259 (676-00225)

NIIN: 01-285-9259
In stock
NSN: 5331-01-285-9259
FSC Code: 5331
MPN: 67600225

5331-01-285-6881 (676-00229)

NIIN: 01-285-6881
In stock
NSN: 5331-01-285-6881
FSC Code: 5331
MPN: 67600229

5331-01-014-4191 (676-00230)

NIIN: 01-014-4191
In stock
NSN: 5331-01-014-4191
FSC Code: 5331
MPN: 67600230

5331-01-285-9257 (676-00210)

NIIN: 01-285-9257
In stock
NSN: 5331-01-285-9257
FSC Code: 5331
MPN: 67600210

5331-01-539-6412 (293-22101-777-0440)

NIIN: 01-539-6412
In stock
NSN: 5331-01-539-6412
FSC Code: 5331
MPN: 293221017770440

5331-01-304-9282 (6-754-000105)

NIIN: 01-304-9282
In stock
NSN: 5331-01-304-9282
FSC Code: 5331
MPN: 6754000105

5331-00-890-5838 (67500-44)

NIIN: 00-890-5838
In stock
NSN: 5331-00-890-5838
FSC Code: 5331
MPN: 6750044

5331-01-304-3461 (67500-5)

NIIN: 01-304-3461
In stock
NSN: 5331-01-304-3461
FSC Code: 5331
MPN: 675005

5331-01-220-2390 (675-00908)

NIIN: 01-220-2390
In stock
NSN: 5331-01-220-2390
FSC Code: 5331
MPN: 67500908

5331-01-280-6785 (67500-98)

NIIN: 01-280-6785
In stock
NSN: 5331-01-280-6785
FSC Code: 5331
MPN: 6750098

5331-01-254-1382 (67500-30)

NIIN: 01-254-1382
In stock
NSN: 5331-01-254-1382
FSC Code: 5331
MPN: 6750030

5331-01-282-2693 (67500-56)

NIIN: 01-282-2693
In stock
NSN: 5331-01-282-2693
FSC Code: 5331
MPN: 6750056

5331-01-214-4882 (675-00259)

NIIN: 01-214-4882
In stock
NSN: 5331-01-214-4882
FSC Code: 5331
MPN: 67500259

5331-01-295-6759 (67500-102)

NIIN: 01-295-6759
In stock
NSN: 5331-01-295-6759
FSC Code: 5331
MPN: 67500102

5331-01-276-8426 (67500-114)

NIIN: 01-276-8426
In stock
NSN: 5331-01-276-8426
FSC Code: 5331
MPN: 67500114

5331-00-890-5836 (67500-16)

NIIN: 00-890-5836
In stock
NSN: 5331-00-890-5836
FSC Code: 5331
MPN: 6750016

5331-01-140-8108 (675-00244)

NIIN: 01-140-8108
In stock
NSN: 5331-01-140-8108
FSC Code: 5331
MPN: 67500244

5331-01-275-1113 (675-00016)

NIIN: 01-275-1113
In stock
NSN: 5331-01-275-1113
FSC Code: 5331
MPN: 67500016

5331-01-271-9365 (67500-102)

NIIN: 01-271-9365
In stock
NSN: 5331-01-271-9365
FSC Code: 5331
MPN: 67500102

5331-01-197-6300 (675-00117)

NIIN: 01-197-6300
In stock
NSN: 5331-01-197-6300
FSC Code: 5331
MPN: 67500117

5331-01-274-4323 (675-00110)

NIIN: 01-274-4323
In stock
NSN: 5331-01-274-4323
FSC Code: 5331
MPN: 67500110

5331-01-299-2851 (675-00033)

NIIN: 01-299-2851
In stock
NSN: 5331-01-299-2851
FSC Code: 5331
MPN: 67500033

5331-01-197-6299 (675-00006)

NIIN: 01-197-6299
In stock
NSN: 5331-01-197-6299
FSC Code: 5331
MPN: 67500006

5331-01-191-2959 (675-00013)

NIIN: 01-191-2959
In stock
NSN: 5331-01-191-2959
FSC Code: 5331
MPN: 67500013

5331-01-254-8993 (674-8-SS)

NIIN: 01-254-8993
In stock
NSN: 5331-01-254-8993
FSC Code: 5331
MPN: 6748SS

5331-00-514-4204 (6746914-12)

NIIN: 00-514-4204
In stock
NSN: 5331-00-514-4204
FSC Code: 5331
MPN: 674691412

5331-01-266-3945 (6744-001)

NIIN: 01-266-3945
In stock
NSN: 5331-01-266-3945
FSC Code: 5331
MPN: 6744001

5331-99-739-0437 (29226-633-10)

NIIN: 99-739-0437
In stock
NSN: 5331-99-739-0437
FSC Code: 5331
MPN: 2922663310

5331-00-470-9469 (674-00113)

NIIN: 00-470-9469
In stock
NSN: 5331-00-470-9469
FSC Code: 5331
MPN: 67400113

5331-00-171-5682 (6737083-5)

NIIN: 00-171-5682
In stock
NSN: 5331-00-171-5682
FSC Code: 5331
MPN: 67370835

5331-00-842-3203 (6735231-130)

NIIN: 00-842-3203
In stock
NSN: 5331-00-842-3203
FSC Code: 5331
MPN: 6735231130

5331-00-641-3284 (6735231-131)

NIIN: 00-641-3284
In stock
NSN: 5331-00-641-3284
FSC Code: 5331
MPN: 6735231131

5331-00-649-1911 (6735231-120)

NIIN: 00-649-1911
In stock
NSN: 5331-00-649-1911
FSC Code: 5331
MPN: 6735231120

5331-00-801-2425 (6735231-33)

NIIN: 00-801-2425
In stock
NSN: 5331-00-801-2425
FSC Code: 5331
MPN: 673523133

5331-00-883-6572 (6735231-142)

NIIN: 00-883-6572
In stock
NSN: 5331-00-883-6572
FSC Code: 5331
MPN: 6735231142

5331-00-882-8050 (6735231-117)

NIIN: 00-882-8050
In stock
NSN: 5331-00-882-8050
FSC Code: 5331
MPN: 6735231117

5331-01-441-2351 (29206-00200)

NIIN: 01-441-2351
In stock
NSN: 5331-01-441-2351
FSC Code: 5331
MPN: 2920600200

5331-00-641-6711 (6732673-2)

NIIN: 00-641-6711
In stock
NSN: 5331-00-641-6711
FSC Code: 5331
MPN: 67326732

5331-01-439-4894 (29-189)

NIIN: 01-439-4894
In stock
NSN: 5331-01-439-4894
FSC Code: 5331
MPN: 29189

5331-01-397-0473 (29178-22)

NIIN: 01-397-0473
In stock
NSN: 5331-01-397-0473
FSC Code: 5331
MPN: 2917822

5331-01-381-1442 (2917-001)

NIIN: 01-381-1442
In stock
NSN: 5331-01-381-1442
FSC Code: 5331
MPN: 2917001

5331-01-525-2024 (2916FD)

NIIN: 01-525-2024
In stock
NSN: 5331-01-525-2024
FSC Code: 5331
MPN: 2916FD

5331-00-194-5053 (672-4209-017ITEM29)

NIIN: 00-194-5053
In stock
NSN: 5331-00-194-5053
FSC Code: 5331
MPN: 6724209017ITEM29

5331-01-567-3943 (2914-OR)

NIIN: 01-567-3943
In stock
NSN: 5331-01-567-3943
FSC Code: 5331
MPN: 2914OR