Skip to content

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.

5331-01-292-0391 (00-311731)

NIIN: 01-292-0391
In stock
NSN: 5331-01-292-0391
FSC Code: 5331
MPN: 00311731

5331-01-246-9626 (003120ED)

NIIN: 01-246-9626
In stock
NSN: 5331-01-246-9626
FSC Code: 5331
MPN: 003120ED

5331-00-585-0626 (003-1467)

NIIN: 00-585-0626
In stock
NSN: 5331-00-585-0626
FSC Code: 5331
MPN: 0031467

5331-01-154-9464 (003147)

NIIN: 01-154-9464
In stock
NSN: 5331-01-154-9464
FSC Code: 5331
MPN: 003147

5331-00-641-0231 (003216)

NIIN: 00-641-0231
In stock
NSN: 5331-00-641-0231
FSC Code: 5331
MPN: 003216

5331-01-096-8817 (003226)

NIIN: 01-096-8817
In stock
NSN: 5331-01-096-8817
FSC Code: 5331
MPN: 003226

5331-01-006-2129 (003222EE)

NIIN: 01-006-2129
In stock
NSN: 5331-01-006-2129
FSC Code: 5331
MPN: 003222EE

5331-01-152-1237 (003223EE)

NIIN: 01-152-1237
In stock
NSN: 5331-01-152-1237
FSC Code: 5331
MPN: 003223EE

5331-00-556-7513 (003216EE)

NIIN: 00-556-7513
In stock
NSN: 5331-00-556-7513
FSC Code: 5331
MPN: 003216EE

5331-00-165-1946 (003228)

NIIN: 00-165-1946
In stock
NSN: 5331-00-165-1946
FSC Code: 5331
MPN: 003228

5331-00-171-6649 (003223EB)

NIIN: 00-171-6649
In stock
NSN: 5331-00-171-6649
FSC Code: 5331
MPN: 003223EB

5331-00-253-2374 (003223ED)

NIIN: 00-253-2374
In stock
NSN: 5331-00-253-2374
FSC Code: 5331
MPN: 003223ED

5331-01-273-1649 (003226EB)

NIIN: 01-273-1649
In stock
NSN: 5331-01-273-1649
FSC Code: 5331
MPN: 003226EB

5331-00-166-1112 (003226ED)

NIIN: 00-166-1112
In stock
NSN: 5331-00-166-1112
FSC Code: 5331
MPN: 003226ED

5331-01-292-0392 (00-321631)

NIIN: 01-292-0392
In stock
NSN: 5331-01-292-0392
FSC Code: 5331
MPN: 00321631

5331-01-169-2473 (0032337)

NIIN: 01-169-2473
In stock
NSN: 5331-01-169-2473
FSC Code: 5331
MPN: 0032337

5331-01-194-8964 (003234EE)

NIIN: 01-194-8964
In stock
NSN: 5331-01-194-8964
FSC Code: 5331
MPN: 003234EE

5331-01-153-9113 (003239ED)

NIIN: 01-153-9113
In stock
NSN: 5331-01-153-9113
FSC Code: 5331
MPN: 003239ED

5331-01-122-5490 (00330-0818)

NIIN: 01-122-5490
In stock
NSN: 5331-01-122-5490
FSC Code: 5331
MPN: 003300818

5331-01-114-2330 (00330-1081)

NIIN: 01-114-2330
In stock
NSN: 5331-01-114-2330
FSC Code: 5331
MPN: 003301081

5331-01-338-6854 (0034-12-339)

NIIN: 01-338-6854
In stock
NSN: 5331-01-338-6854
FSC Code: 5331
MPN: 003412339

5331-01-059-1139 (0034-6045B612-70)

NIIN: 01-059-1139
In stock
NSN: 5331-01-059-1139
FSC Code: 5331
MPN: 00346045B61270

5331-01-031-8269 (0034-6045)

NIIN: 01-031-8269
In stock
NSN: 5331-01-031-8269
FSC Code: 5331
MPN: 00346045

5331-01-082-5742 (00358520)

NIIN: 01-082-5742
In stock
NSN: 5331-01-082-5742
FSC Code: 5331
MPN: 00358520

5331-01-129-0630 (00364-035)

NIIN: 01-129-0630
In stock
NSN: 5331-01-129-0630
FSC Code: 5331
MPN: 00364035

5331-01-144-6174 (0036356)

NIIN: 01-144-6174
In stock
NSN: 5331-01-144-6174
FSC Code: 5331
MPN: 0036356

5331-00-441-1570 (003673-2)

NIIN: 00-441-1570
In stock
NSN: 5331-00-441-1570
FSC Code: 5331
MPN: 0036732

5331-00-171-4432 (003673-1)

NIIN: 00-171-4432
In stock
NSN: 5331-00-171-4432
FSC Code: 5331
MPN: 0036731

5331-00-752-8541 (003-711-70)

NIIN: 00-752-8541
In stock
NSN: 5331-00-752-8541
FSC Code: 5331
MPN: 00371170

5331-00-387-1042 (003-682241-E)

NIIN: 00-387-1042
In stock
NSN: 5331-00-387-1042
FSC Code: 5331
MPN: 003682241E

5331-01-268-8803 (003770)

NIIN: 01-268-8803
In stock
NSN: 5331-01-268-8803
FSC Code: 5331
MPN: 003770

5331-01-268-0875 (003770)

NIIN: 01-268-0875
In stock
NSN: 5331-01-268-0875
FSC Code: 5331
MPN: 003770

5331-01-240-1840 (003770028001)

NIIN: 01-240-1840
In stock
NSN: 5331-01-240-1840
FSC Code: 5331
MPN: 003770028001

5331-01-240-1834 (003771)

NIIN: 01-240-1834
In stock
NSN: 5331-01-240-1834
FSC Code: 5331
MPN: 003771

5331-01-136-8355 (00-399-554)

NIIN: 01-136-8355
In stock
NSN: 5331-01-136-8355
FSC Code: 5331
MPN: 00399554

5331-01-166-5939 (0039975848)

NIIN: 01-166-5939
In stock
NSN: 5331-01-166-5939
FSC Code: 5331
MPN: 0039975848

5331-01-179-7580 (0039977740)

NIIN: 01-179-7580
In stock
NSN: 5331-01-179-7580
FSC Code: 5331
MPN: 0039977740

5331-01-173-9223 (0039979245)

NIIN: 01-173-9223
In stock
NSN: 5331-01-173-9223
FSC Code: 5331
MPN: 0039979245

5331-01-049-8250 (003B00)

NIIN: 01-049-8250
In stock
NSN: 5331-01-049-8250
FSC Code: 5331
MPN: 003B00

5331-01-227-3450 (004)

NIIN: 01-227-3450
In stock
NSN: 5331-01-227-3450
FSC Code: 5331
MPN: 004

5331-01-246-3894 (004)

NIIN: 01-246-3894
In stock
NSN: 5331-01-246-3894
FSC Code: 5331
MPN: 004

5331-01-333-5194 (00400052)

NIIN: 01-333-5194
In stock
NSN: 5331-01-333-5194
FSC Code: 5331
MPN: 00400052

5331-01-290-1683 (0-04001-015)

NIIN: 01-290-1683
In stock
NSN: 5331-01-290-1683
FSC Code: 5331
MPN: 004001015

5331-01-282-4801 (0-04001-117)

NIIN: 01-282-4801
In stock
NSN: 5331-01-282-4801
FSC Code: 5331
MPN: 004001117

5331-01-283-2435 (0-04001-906)

NIIN: 01-283-2435
In stock
NSN: 5331-01-283-2435
FSC Code: 5331
MPN: 004001906

5331-01-282-9512 (0-04001-908)

NIIN: 01-282-9512
In stock
NSN: 5331-01-282-9512
FSC Code: 5331
MPN: 004001908

5331-01-257-4320 (004012)

NIIN: 01-257-4320
In stock
NSN: 5331-01-257-4320
FSC Code: 5331
MPN: 004012

5331-01-091-6083 (004014)

NIIN: 01-091-6083
In stock
NSN: 5331-01-091-6083
FSC Code: 5331
MPN: 004014