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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.

5331-00-119-1643 (000009EG)

NIIN: 00-119-1643
In stock
NSN: 5331-00-119-1643
FSC Code: 5331
MPN: 000009EG

5331-01-253-9034 (000011EE)

NIIN: 01-253-9034
In stock
NSN: 5331-01-253-9034
FSC Code: 5331
MPN: 000011EE

5331-00-436-1937 (000012EB)

NIIN: 00-436-1937
In stock
NSN: 5331-00-436-1937
FSC Code: 5331
MPN: 000012EB

5331-00-881-3442 (0000-114-9501)

NIIN: 00-881-3442
In stock
NSN: 5331-00-881-3442
FSC Code: 5331
MPN: 00001149501

5331-00-245-9005 (000012)

NIIN: 00-245-9005
In stock
NSN: 5331-00-245-9005
FSC Code: 5331
MPN: 000012

5331-01-073-5621 (000012EE)

NIIN: 01-073-5621
In stock
NSN: 5331-01-073-5621
FSC Code: 5331
MPN: 000012EE

5331-01-209-4109 (000014505)

NIIN: 01-209-4109
In stock
NSN: 5331-01-209-4109
FSC Code: 5331
MPN: 000014505

5331-00-245-9001 (000014)

NIIN: 00-245-9001
In stock
NSN: 5331-00-245-9001
FSC Code: 5331
MPN: 000014

5331-01-252-3120 (000014000G)

NIIN: 01-252-3120
In stock
NSN: 5331-01-252-3120
FSC Code: 5331
MPN: 000014000G

5331-01-285-7666 (000012ED)

NIIN: 01-285-7666
In stock
NSN: 5331-01-285-7666
FSC Code: 5331
MPN: 000012ED

5331-00-580-6585 (000013-2003)

NIIN: 00-580-6585
In stock
NSN: 5331-00-580-6585
FSC Code: 5331
MPN: 0000132003

5331-01-267-9176 (000014EE)

NIIN: 01-267-9176
In stock
NSN: 5331-01-267-9176
FSC Code: 5331
MPN: 000014EE

5331-00-235-5262 (000014EE)

NIIN: 00-235-5262
In stock
NSN: 5331-00-235-5262
FSC Code: 5331
MPN: 000014EE

5331-01-317-6285 (000014EB)

NIIN: 01-317-6285
In stock
NSN: 5331-01-317-6285
FSC Code: 5331
MPN: 000014EB

5331-00-166-0990 (000014EB)

NIIN: 00-166-0990
In stock
NSN: 5331-00-166-0990
FSC Code: 5331
MPN: 000014EB

5331-00-185-0527 (000014EL)

NIIN: 00-185-0527
In stock
NSN: 5331-00-185-0527
FSC Code: 5331
MPN: 000014EL

5331-00-471-3821 (000014ED)

NIIN: 00-471-3821
In stock
NSN: 5331-00-471-3821
FSC Code: 5331
MPN: 000014ED

5331-00-831-6639 (000014EE)

NIIN: 00-831-6639
In stock
NSN: 5331-00-831-6639
FSC Code: 5331
MPN: 000014EE

5331-01-237-2141 (000014ED)

NIIN: 01-237-2141
In stock
NSN: 5331-01-237-2141
FSC Code: 5331
MPN: 000014ED

5331-00-137-6695 (000014ELCP)

NIIN: 00-137-6695
In stock
NSN: 5331-00-137-6695
FSC Code: 5331
MPN: 000014ELCP

5331-00-984-4607 (00001900ML)

NIIN: 00-984-4607
In stock
NSN: 5331-00-984-4607
FSC Code: 5331
MPN: 00001900ML

5331-00-819-9488 (0000-214-9501)

NIIN: 00-819-9488
In stock
NSN: 5331-00-819-9488
FSC Code: 5331
MPN: 00002149501

5331-00-166-8422 (0000-224-9548)

NIIN: 00-166-8422
In stock
NSN: 5331-00-166-8422
FSC Code: 5331
MPN: 00002249548

5331-01-124-0530 (0000-230-9501)

NIIN: 01-124-0530
In stock
NSN: 5331-01-124-0530
FSC Code: 5331
MPN: 00002309501

5331-01-286-7797 (0000-247-9501)

NIIN: 01-286-7797
In stock
NSN: 5331-01-286-7797
FSC Code: 5331
MPN: 00002479501

5331-01-218-8847 (0000-235-N807)

NIIN: 01-218-8847
In stock
NSN: 5331-01-218-8847
FSC Code: 5331
MPN: 0000235N807

5331-01-327-2628 (0000-242-9549)

NIIN: 01-327-2628
In stock
NSN: 5331-01-327-2628
FSC Code: 5331
MPN: 00002429549

5331-00-166-8689 (0000-23)

NIIN: 00-166-8689
In stock
NSN: 5331-00-166-8689
FSC Code: 5331
MPN: 000023

5331-01-327-2627 (0000-249-9548)

NIIN: 01-327-2627
In stock
NSN: 5331-01-327-2627
FSC Code: 5331
MPN: 00002499548

5331-00-889-8557 (00002700MG)

NIIN: 00-889-8557
In stock
NSN: 5331-00-889-8557
FSC Code: 5331
MPN: 00002700MG

5331-00-972-4694 (0000274247)

NIIN: 00-972-4694
In stock
NSN: 5331-00-972-4694
FSC Code: 5331
MPN: 0000274247

5331-00-725-4365 (0000274251)

NIIN: 00-725-4365
In stock
NSN: 5331-00-725-4365
FSC Code: 5331
MPN: 0000274251

5331-01-134-5610 (0000-303144)

NIIN: 01-134-5610
In stock
NSN: 5331-01-134-5610
FSC Code: 5331
MPN: 0000303144

5331-00-166-8695 (0000-28)

NIIN: 00-166-8695
In stock
NSN: 5331-00-166-8695
FSC Code: 5331
MPN: 000028

5331-01-220-2392 (0000-303829)

NIIN: 01-220-2392
In stock
NSN: 5331-01-220-2392
FSC Code: 5331
MPN: 0000303829

5331-01-308-1206 (000-0304)

NIIN: 01-308-1206
In stock
NSN: 5331-01-308-1206
FSC Code: 5331
MPN: 0000304

5331-01-243-0770 (0000-303130)

NIIN: 01-243-0770
In stock
NSN: 5331-01-243-0770
FSC Code: 5331
MPN: 0000303130

5331-01-210-1525 (0000-303229)

NIIN: 01-210-1525
In stock
NSN: 5331-01-210-1525
FSC Code: 5331
MPN: 0000303229

5331-01-210-1522 (0000-305208)

NIIN: 01-210-1522
In stock
NSN: 5331-01-210-1522
FSC Code: 5331
MPN: 0000305208

5331-01-098-1387 (0000-303141)

NIIN: 01-098-1387
In stock
NSN: 5331-01-098-1387
FSC Code: 5331
MPN: 0000303141

5331-01-210-1524 (0000-305205)

NIIN: 01-210-1524
In stock
NSN: 5331-01-210-1524
FSC Code: 5331
MPN: 0000305205

5331-00-165-1960 (0000-305808)

NIIN: 00-165-1960
In stock
NSN: 5331-00-165-1960
FSC Code: 5331
MPN: 0000305808

5331-01-314-2967 (000-0305)

NIIN: 01-314-2967
In stock
NSN: 5331-01-314-2967
FSC Code: 5331
MPN: 0000305

5331-01-165-7499 (0000-305108)

NIIN: 01-165-7499
In stock
NSN: 5331-01-165-7499
FSC Code: 5331
MPN: 0000305108

5331-01-220-2394 (0000-305806)

NIIN: 01-220-2394
In stock
NSN: 5331-01-220-2394
FSC Code: 5331
MPN: 0000305806

5331-01-220-2393 (0000-305805)

NIIN: 01-220-2393
In stock
NSN: 5331-01-220-2393
FSC Code: 5331
MPN: 0000305805

5331-01-210-1523 (0000-305206)

NIIN: 01-210-1523
In stock
NSN: 5331-01-210-1523
FSC Code: 5331
MPN: 0000305206

5331-01-221-9646 (0000-3263)

NIIN: 01-221-9646
In stock
NSN: 5331-01-221-9646
FSC Code: 5331
MPN: 00003263