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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.

5331-01-491-3004 (403069-0029)

NIIN: 01-491-3004
In stock
NSN: 5331-01-491-3004
FSC Code: 5331
MPN: 4030690029

5331-01-166-7066 (808181-13)

NIIN: 01-166-7066
In stock
NSN: 5331-01-166-7066
FSC Code: 5331
MPN: 80818113

5331-00-146-7332 (80812-16)

NIIN: 00-146-7332
In stock
NSN: 5331-00-146-7332
FSC Code: 5331
MPN: 8081216

5331-01-410-7889 (40289-0)

NIIN: 01-410-7889
In stock
NSN: 5331-01-410-7889
FSC Code: 5331
MPN: 402890

5331-01-211-3003 (808111-111)

NIIN: 01-211-3003
In stock
NSN: 5331-01-211-3003
FSC Code: 5331
MPN: 808111111

5331-01-410-7862 (40286-0)

NIIN: 01-410-7862
In stock
NSN: 5331-01-410-7862
FSC Code: 5331
MPN: 402860

5331-01-282-4712 (808-1)

NIIN: 01-282-4712
In stock
NSN: 5331-01-282-4712
FSC Code: 5331
MPN: 8081

5331-01-416-5594 (4028-32)

NIIN: 01-416-5594
In stock
NSN: 5331-01-416-5594
FSC Code: 5331
MPN: 402832

5331-01-410-7872 (40283-1)

NIIN: 01-410-7872
In stock
NSN: 5331-01-410-7872
FSC Code: 5331
MPN: 402831

5331-01-410-7870 (40280-0)

NIIN: 01-410-7870
In stock
NSN: 5331-01-410-7870
FSC Code: 5331
MPN: 402800

5331-01-410-7863 (40278-1)

NIIN: 01-410-7863
In stock
NSN: 5331-01-410-7863
FSC Code: 5331
MPN: 402781

5331-01-410-7864 (40277-0)

NIIN: 01-410-7864
In stock
NSN: 5331-01-410-7864
FSC Code: 5331
MPN: 402770

5331-01-330-2085 (808-008)

NIIN: 01-330-2085
In stock
NSN: 5331-01-330-2085
FSC Code: 5331
MPN: 808008

5331-01-410-7865 (40274-0)

NIIN: 01-410-7865
In stock
NSN: 5331-01-410-7865
FSC Code: 5331
MPN: 402740

5331-01-365-4408 (402-687)

NIIN: 01-365-4408
In stock
NSN: 5331-01-365-4408
FSC Code: 5331
MPN: 402687

5331-01-282-4710 (808-0)

NIIN: 01-282-4710
In stock
NSN: 5331-01-282-4710
FSC Code: 5331
MPN: 8080

5331-01-226-3080 (807198-05)

NIIN: 01-226-3080
In stock
NSN: 5331-01-226-3080
FSC Code: 5331
MPN: 80719805

5331-01-290-9587 (807188-01)

NIIN: 01-290-9587
In stock
NSN: 5331-01-290-9587
FSC Code: 5331
MPN: 80718801

5331-01-151-7292 (807-1500-76F-PIECE)

NIIN: 01-151-7292
In stock
NSN: 5331-01-151-7292
FSC Code: 5331
MPN: 807150076FPIECE

5331-01-122-0332 (807121-52)

NIIN: 01-122-0332
In stock
NSN: 5331-01-122-0332
FSC Code: 5331
MPN: 80712152

5331-01-282-1541 (807160-00)

NIIN: 01-282-1541
In stock
NSN: 5331-01-282-1541
FSC Code: 5331
MPN: 80716000

5331-01-416-5586 (4024-32)

NIIN: 01-416-5586
In stock
NSN: 5331-01-416-5586
FSC Code: 5331
MPN: 402432

5331-01-173-6591 (807087-37)

NIIN: 01-173-6591
In stock
NSN: 5331-01-173-6591
FSC Code: 5331
MPN: 80708737

5331-01-005-2315 (807116-89)

NIIN: 01-005-2315
In stock
NSN: 5331-01-005-2315
FSC Code: 5331
MPN: 80711689

5331-01-173-6593 (807090-55)

NIIN: 01-173-6593
In stock
NSN: 5331-01-173-6593
FSC Code: 5331
MPN: 80709055

5331-01-275-1866 (807091-18PH)

NIIN: 01-275-1866
In stock
NSN: 5331-01-275-1866
FSC Code: 5331
MPN: 80709118PH

5331-01-223-5509 (807041-96)

NIIN: 01-223-5509
In stock
NSN: 5331-01-223-5509
FSC Code: 5331
MPN: 80704196

5331-01-275-1867 (807091-19PH)

NIIN: 01-275-1867
In stock
NSN: 5331-01-275-1867
FSC Code: 5331
MPN: 80709119PH

5331-01-173-6592 (807087-28)

NIIN: 01-173-6592
In stock
NSN: 5331-01-173-6592
FSC Code: 5331
MPN: 80708728

5331-01-223-5510 (807041-95)

NIIN: 01-223-5510
In stock
NSN: 5331-01-223-5510
FSC Code: 5331
MPN: 80704195

5331-00-598-7912 (807034-62)

NIIN: 00-598-7912
In stock
NSN: 5331-00-598-7912
FSC Code: 5331
MPN: 80703462

5331-00-598-7914 (807034-63)

NIIN: 00-598-7914
In stock
NSN: 5331-00-598-7914
FSC Code: 5331
MPN: 80703463

5331-01-053-1946 (807028-21)

NIIN: 01-053-1946
In stock
NSN: 5331-01-053-1946
FSC Code: 5331
MPN: 80702821

5331-01-268-2561 (807020-74PH)

NIIN: 01-268-2561
In stock
NSN: 5331-01-268-2561
FSC Code: 5331
MPN: 80702074PH

5331-01-272-5477 (807005-31)

NIIN: 01-272-5477
In stock
NSN: 5331-01-272-5477
FSC Code: 5331
MPN: 80700531

5331-01-268-2559 (807014-83PH)

NIIN: 01-268-2559
In stock
NSN: 5331-01-268-2559
FSC Code: 5331
MPN: 80701483PH

5331-01-106-4339 (80-702-00)

NIIN: 01-106-4339
In stock
NSN: 5331-01-106-4339
FSC Code: 5331
MPN: 8070200

5331-01-031-5062 (807002-94)

NIIN: 01-031-5062
In stock
NSN: 5331-01-031-5062
FSC Code: 5331
MPN: 80700294

5331-00-913-6041 (806C204P3)

NIIN: 00-913-6041
In stock
NSN: 5331-00-913-6041
FSC Code: 5331
MPN: 806C204P3

5331-01-368-6351 (40-2297)

NIIN: 01-368-6351
In stock
NSN: 5331-01-368-6351
FSC Code: 5331
MPN: 402297

5331-01-122-2038 (8-060-202-00)

NIIN: 01-122-2038
In stock
NSN: 5331-01-122-2038
FSC Code: 5331
MPN: 806020200

5331-01-113-2192 (8-0531)

NIIN: 01-113-2192
In stock
NSN: 5331-01-113-2192
FSC Code: 5331
MPN: 80531

5331-01-268-0872 (8-0533)

NIIN: 01-268-0872
In stock
NSN: 5331-01-268-0872
FSC Code: 5331
MPN: 80533

5331-01-113-2193 (8-0534)

NIIN: 01-113-2193
In stock
NSN: 5331-01-113-2193
FSC Code: 5331
MPN: 80534

5331-01-451-5924 (401-A)

NIIN: 01-451-5924
In stock
NSN: 5331-01-451-5924
FSC Code: 5331
MPN: 401A

5331-01-465-1573 (A3259464-2)

NIIN: 01-465-1573
In stock
NSN: 5331-01-465-1573
FSC Code: 5331
MPN: A32594642

5331-01-467-0794 (40-19PI)

NIIN: 01-467-0794
In stock
NSN: 5331-01-467-0794
FSC Code: 5331
MPN: 4019PI

5331-01-095-3190 (8051-06)

NIIN: 01-095-3190
In stock
NSN: 5331-01-095-3190
FSC Code: 5331
MPN: 805106