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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.

5331-01-297-7195 (10129583)

NIIN: 01-297-7195
In stock
NSN: 5331-01-297-7195
FSC Code: 5331
MPN: 10129583

5331-01-185-2569 (10129587)

NIIN: 01-185-2569
In stock
NSN: 5331-01-185-2569
FSC Code: 5331
MPN: 10129587

5331-01-112-4060 (10129585)

NIIN: 01-112-4060
In stock
NSN: 5331-01-112-4060
FSC Code: 5331
MPN: 10129585

5331-01-131-1895 (10129575)

NIIN: 01-131-1895
In stock
NSN: 5331-01-131-1895
FSC Code: 5331
MPN: 10129575

5331-00-584-0150 (10129561)

NIIN: 00-584-0150
In stock
NSN: 5331-00-584-0150
FSC Code: 5331
MPN: 10129561

5331-01-205-4264 (10132030)

NIIN: 01-205-4264
In stock
NSN: 5331-01-205-4264
FSC Code: 5331
MPN: 10132030

5331-00-004-3096 (10134661)

NIIN: 00-004-3096
In stock
NSN: 5331-00-004-3096
FSC Code: 5331
MPN: 10134661

5331-00-279-4328 (10136947)

NIIN: 00-279-4328
In stock
NSN: 5331-00-279-4328
FSC Code: 5331
MPN: 10136947

5331-01-123-3297 (10136918)

NIIN: 01-123-3297
In stock
NSN: 5331-01-123-3297
FSC Code: 5331
MPN: 10136918

5331-01-107-4961 (10136945)

NIIN: 01-107-4961
In stock
NSN: 5331-01-107-4961
FSC Code: 5331
MPN: 10136945

5331-01-129-0635 (10136874)

NIIN: 01-129-0635
In stock
NSN: 5331-01-129-0635
FSC Code: 5331
MPN: 10136874

5331-01-079-7309 (10138052)

NIIN: 01-079-7309
In stock
NSN: 5331-01-079-7309
FSC Code: 5331
MPN: 10138052

5331-01-007-1608 (10137961)

NIIN: 01-007-1608
In stock
NSN: 5331-01-007-1608
FSC Code: 5331
MPN: 10137961

5331-00-763-0075 (10136949)

NIIN: 00-763-0075
In stock
NSN: 5331-00-763-0075
FSC Code: 5331
MPN: 10136949

5331-00-137-1450 (10136944)

NIIN: 00-137-1450
In stock
NSN: 5331-00-137-1450
FSC Code: 5331
MPN: 10136944

5331-00-822-3691 (10138290)

NIIN: 00-822-3691
In stock
NSN: 5331-00-822-3691
FSC Code: 5331
MPN: 10138290

5331-00-551-8251 (10138289)

NIIN: 00-551-8251
In stock
NSN: 5331-00-551-8251
FSC Code: 5331
MPN: 10138289

5331-01-132-0273 (10138213)

NIIN: 01-132-0273
In stock
NSN: 5331-01-132-0273
FSC Code: 5331
MPN: 10138213

5331-00-526-1979 (10145174)

NIIN: 00-526-1979
In stock
NSN: 5331-00-526-1979
FSC Code: 5331
MPN: 10145174

5331-00-903-7376 (10153130)

NIIN: 00-903-7376
In stock
NSN: 5331-00-903-7376
FSC Code: 5331
MPN: 10153130

5331-00-435-9133 (10154070)

NIIN: 00-435-9133
In stock
NSN: 5331-00-435-9133
FSC Code: 5331
MPN: 10154070

5331-00-089-9981 (10154067)

NIIN: 00-089-9981
In stock
NSN: 5331-00-089-9981
FSC Code: 5331
MPN: 10154067

5331-00-297-9987 (10154068)

NIIN: 00-297-9987
In stock
NSN: 5331-00-297-9987
FSC Code: 5331
MPN: 10154068

5331-00-435-9132 (10154069)

NIIN: 00-435-9132
In stock
NSN: 5331-00-435-9132
FSC Code: 5331
MPN: 10154069

5331-00-585-7724 (10154074)

NIIN: 00-585-7724
In stock
NSN: 5331-00-585-7724
FSC Code: 5331
MPN: 10154074

5331-00-585-7487 (10154073)

NIIN: 00-585-7487
In stock
NSN: 5331-00-585-7487
FSC Code: 5331
MPN: 10154073

5331-01-091-0757 (10154087)

NIIN: 01-091-0757
In stock
NSN: 5331-01-091-0757
FSC Code: 5331
MPN: 10154087

5331-01-101-9486 (10154088)

NIIN: 01-101-9486
In stock
NSN: 5331-01-101-9486
FSC Code: 5331
MPN: 10154088

5331-00-922-5854 (10154082)

NIIN: 00-922-5854
In stock
NSN: 5331-00-922-5854
FSC Code: 5331
MPN: 10154082

5331-01-183-0979 (10154098)

NIIN: 01-183-0979
In stock
NSN: 5331-01-183-0979
FSC Code: 5331
MPN: 10154098

5331-01-108-0544 (10154091)

NIIN: 01-108-0544
In stock
NSN: 5331-01-108-0544
FSC Code: 5331
MPN: 10154091

5331-00-618-5902 (10154077)

NIIN: 00-618-5902
In stock
NSN: 5331-00-618-5902
FSC Code: 5331
MPN: 10154077

5331-01-163-5599 (10154097)

NIIN: 01-163-5599
In stock
NSN: 5331-01-163-5599
FSC Code: 5331
MPN: 10154097

5331-01-130-2545 (10154094)

NIIN: 01-130-2545
In stock
NSN: 5331-01-130-2545
FSC Code: 5331
MPN: 10154094

5331-00-782-0124 (10154078)

NIIN: 00-782-0124
In stock
NSN: 5331-00-782-0124
FSC Code: 5331
MPN: 10154078

5331-00-912-5040 (10154081)

NIIN: 00-912-5040
In stock
NSN: 5331-00-912-5040
FSC Code: 5331
MPN: 10154081

5331-00-052-9730 (10154101)

NIIN: 00-052-9730
In stock
NSN: 5331-00-052-9730
FSC Code: 5331
MPN: 10154101

5331-01-122-7669 (10154093)

NIIN: 01-122-7669
In stock
NSN: 5331-01-122-7669
FSC Code: 5331
MPN: 10154093

5331-01-145-3919 (10154096)

NIIN: 01-145-3919
In stock
NSN: 5331-01-145-3919
FSC Code: 5331
MPN: 10154096

5331-01-279-1165 (10154104)

NIIN: 01-279-1165
In stock
NSN: 5331-01-279-1165
FSC Code: 5331
MPN: 10154104

5331-01-106-7287 (10154089)

NIIN: 01-106-7287
In stock
NSN: 5331-01-106-7287
FSC Code: 5331
MPN: 10154089

5331-01-120-3838 (10154092)

NIIN: 01-120-3838
In stock
NSN: 5331-01-120-3838
FSC Code: 5331
MPN: 10154092

5331-01-028-5743 (10154084)

NIIN: 01-028-5743
In stock
NSN: 5331-01-028-5743
FSC Code: 5331
MPN: 10154084

5331-01-183-0985 (10154099)

NIIN: 01-183-0985
In stock
NSN: 5331-01-183-0985
FSC Code: 5331
MPN: 10154099

5331-00-988-8681 (10158075)

NIIN: 00-988-8681
In stock
NSN: 5331-00-988-8681
FSC Code: 5331
MPN: 10158075

5331-00-251-7549 (10158836)

NIIN: 00-251-7549
In stock
NSN: 5331-00-251-7549
FSC Code: 5331
MPN: 10158836

5331-00-194-1670 (10159770)

NIIN: 00-194-1670
In stock
NSN: 5331-00-194-1670
FSC Code: 5331
MPN: 10159770

5331-01-264-8242 (10159786)

NIIN: 01-264-8242
In stock
NSN: 5331-01-264-8242
FSC Code: 5331
MPN: 10159786