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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.

5331-01-567-5852 (3-916-16)

NIIN: 01-567-5852
In stock
NSN: 5331-01-567-5852
FSC Code: 5331
MPN: 391616

5331-01-541-1319 (17KP659)

NIIN: 01-541-1319
In stock
NSN: 5331-01-541-1319
FSC Code: 5331
MPN: 17KP659

5331-01-503-3545 (2515008C1)

NIIN: 01-503-3545
In stock
NSN: 5331-01-503-3545
FSC Code: 5331
MPN: 2515008C1

5331-01-567-2579 (17KP926)

NIIN: 01-567-2579
In stock
NSN: 5331-01-567-2579
FSC Code: 5331
MPN: 17KP926

5331-01-541-1314 (17KP660)

NIIN: 01-541-1314
In stock
NSN: 5331-01-541-1314
FSC Code: 5331
MPN: 17KP660

5331-00-420-8230 (504105-121)

NIIN: 00-420-8230
In stock
NSN: 5331-00-420-8230
FSC Code: 5331
MPN: 504105121

5331-00-420-8235 (504105-152)

NIIN: 00-420-8235
In stock
NSN: 5331-00-420-8235
FSC Code: 5331
MPN: 504105152

5331-00-420-6441 (504105-132)

NIIN: 00-420-6441
In stock
NSN: 5331-00-420-6441
FSC Code: 5331
MPN: 504105132

5331-00-420-8231 (504105-124)

NIIN: 00-420-8231
In stock
NSN: 5331-00-420-8231
FSC Code: 5331
MPN: 504105124

5331-00-291-3301 (5040-3)

NIIN: 00-291-3301
In stock
NSN: 5331-00-291-3301
FSC Code: 5331
MPN: 50403

5331-01-338-6306 (504-03-466)

NIIN: 01-338-6306
In stock
NSN: 5331-01-338-6306
FSC Code: 5331
MPN: 50403466

5331-00-957-7678 (5040-2)

NIIN: 00-957-7678
In stock
NSN: 5331-00-957-7678
FSC Code: 5331
MPN: 50402

5331-00-811-1629 (5040-1)

NIIN: 00-811-1629
In stock
NSN: 5331-00-811-1629
FSC Code: 5331
MPN: 50401

5331-00-882-8049 (504001-000-0060)

NIIN: 00-882-8049
In stock
NSN: 5331-00-882-8049
FSC Code: 5331
MPN: 5040010000060

5331-01-214-7701 (5037328-02)

NIIN: 01-214-7701
In stock
NSN: 5331-01-214-7701
FSC Code: 5331
MPN: 503732802

5331-01-075-0912 (50-35-E-009-12)

NIIN: 01-075-0912
In stock
NSN: 5331-01-075-0912
FSC Code: 5331
MPN: 5035E00912

5331-01-274-5974 (5-036-13-075-001)

NIIN: 01-274-5974
In stock
NSN: 5331-01-274-5974
FSC Code: 5331
MPN: 503613075001

5331-01-076-2976 (50-35-E-009-10)

NIIN: 01-076-2976
In stock
NSN: 5331-01-076-2976
FSC Code: 5331
MPN: 5035E00910

5331-01-378-3690 (SB720-ABE1E3F)

NIIN: 01-378-3690
In stock
NSN: 5331-01-378-3690
FSC Code: 5331
MPN: SB720ABE1E3F

5331-00-684-7729 (50334-132C)

NIIN: 00-684-7729
In stock
NSN: 5331-00-684-7729
FSC Code: 5331
MPN: 50334132C

5331-01-541-4318 (179-8128)

NIIN: 01-541-4318
In stock
NSN: 5331-01-541-4318
FSC Code: 5331
MPN: 1798128

5331-01-479-4385 (1796-RR3-002)

NIIN: 01-479-4385
In stock
NSN: 5331-01-479-4385
FSC Code: 5331
MPN: 1796RR3002

5331-01-513-2420 (179-487)

NIIN: 01-513-2420
In stock
NSN: 5331-01-513-2420
FSC Code: 5331
MPN: 179487

5331-01-459-6338 (17944VT)

NIIN: 01-459-6338
In stock
NSN: 5331-01-459-6338
FSC Code: 5331
MPN: 17944VT

5331-00-585-3204 (50-300010-51)

NIIN: 00-585-3204
In stock
NSN: 5331-00-585-3204
FSC Code: 5331
MPN: 5030001051

5331-01-246-2540 (502NBMGWAHP76-3)

NIIN: 01-246-2540
In stock
NSN: 5331-01-246-2540
FSC Code: 5331
MPN: 502NBMGWAHP763

5331-01-258-7740 (502NBMGWA63TBLDNV-3)

NIIN: 01-258-7740
In stock
NSN: 5331-01-258-7740
FSC Code: 5331
MPN: 502NBMGWA63TBLDNV3

5331-01-091-6806 (502C945B)

NIIN: 01-091-6806
In stock
NSN: 5331-01-091-6806
FSC Code: 5331
MPN: 502C945B

5331-01-227-0492 (502C646A01)

NIIN: 01-227-0492
In stock
NSN: 5331-01-227-0492
FSC Code: 5331
MPN: 502C646A01

5331-01-067-9025 (502C1747B)

NIIN: 01-067-9025
In stock
NSN: 5331-01-067-9025
FSC Code: 5331
MPN: 502C1747B

5331-01-126-0831 (502C1786B)

NIIN: 01-126-0831
In stock
NSN: 5331-01-126-0831
FSC Code: 5331
MPN: 502C1786B

5331-01-091-6087 (502C243-3B)

NIIN: 01-091-6087
In stock
NSN: 5331-01-091-6087
FSC Code: 5331
MPN: 502C2433B

5331-01-126-0832 (502C243-2B)

NIIN: 01-126-0832
In stock
NSN: 5331-01-126-0832
FSC Code: 5331
MPN: 502C2432B

5331-01-091-6805 (502C238B)

NIIN: 01-091-6805
In stock
NSN: 5331-01-091-6805
FSC Code: 5331
MPN: 502C238B

5331-01-126-0830 (502C237B)

NIIN: 01-126-0830
In stock
NSN: 5331-01-126-0830
FSC Code: 5331
MPN: 502C237B

5331-01-008-9368 (502AS2617-102)

NIIN: 01-008-9368
In stock
NSN: 5331-01-008-9368
FSC Code: 5331
MPN: 502AS2617102

5331-01-004-1637 (502AS2617-103)

NIIN: 01-004-1637
In stock
NSN: 5331-01-004-1637
FSC Code: 5331
MPN: 502AS2617103

5331-01-325-1992 (5029807-2)

NIIN: 01-325-1992
In stock
NSN: 5331-01-325-1992
FSC Code: 5331
MPN: 50298072

5331-01-324-7205 (5029807-1)

NIIN: 01-324-7205
In stock
NSN: 5331-01-324-7205
FSC Code: 5331
MPN: 50298071

5331-01-379-0901 (2-163N674-70)

NIIN: 01-379-0901
In stock
NSN: 5331-01-379-0901
FSC Code: 5331
MPN: 2163N67470

5331-01-377-8930 (17846A/78IREM2)

NIIN: 01-377-8930
In stock
NSN: 5331-01-377-8930
FSC Code: 5331
MPN: 17846A78IREM2

5331-01-535-6955 (178315R1)

NIIN: 01-535-6955
In stock
NSN: 5331-01-535-6955
FSC Code: 5331
MPN: 178315R1

5331-01-067-6926 (5026-00)

NIIN: 01-067-6926
In stock
NSN: 5331-01-067-6926
FSC Code: 5331
MPN: 502600

5331-01-418-1062 (21522118-429)

NIIN: 01-418-1062
In stock
NSN: 5331-01-418-1062
FSC Code: 5331
MPN: 21522118429

5331-01-173-6608 (5-023-188)

NIIN: 01-173-6608
In stock
NSN: 5331-01-173-6608
FSC Code: 5331
MPN: 5023188

5331-01-211-4911 (5022-0002)

NIIN: 01-211-4911
In stock
NSN: 5331-01-211-4911
FSC Code: 5331
MPN: 50220002

5331-01-253-6597 (5021B-1000-14W7)

NIIN: 01-253-6597
In stock
NSN: 5331-01-253-6597
FSC Code: 5331
MPN: 5021B100014W7

5331-01-354-4162 (17781BN)

NIIN: 01-354-4162
In stock
NSN: 5331-01-354-4162
FSC Code: 5331
MPN: 17781BN