Skip to content
News Industries Part Directory Excess Inventory Management Solutions Sitemap

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.

5331-01-464-0438 (AS568-125)

NIIN: 01-464-0438
In stock
NSN: 5331-01-464-0438
FSC Code: 5331
MPN: AS568125

5331-01-496-3855 (MS33666-238)

NIIN: 01-496-3855
In stock
NSN: 5331-01-496-3855
FSC Code: 5331
MPN: MS33666238

5331-01-468-5428 (AS568-222AMS3660)

NIIN: 01-468-5428
In stock
NSN: 5331-01-468-5428
FSC Code: 5331
MPN: AS568222AMS3660

5331-01-480-0218 (AS568-13)

NIIN: 01-480-0218
In stock
NSN: 5331-01-480-0218
FSC Code: 5331
MPN: AS56813

5331-01-382-0093 (AS568-108V)

NIIN: 01-382-0093
In stock
NSN: 5331-01-382-0093
FSC Code: 5331
MPN: AS568108V

5331-01-483-2816 (AS568-214)

NIIN: 01-483-2816
In stock
NSN: 5331-01-483-2816
FSC Code: 5331
MPN: AS568214

5331-01-499-6903 (AS568-214-259)

NIIN: 01-499-6903
In stock
NSN: 5331-01-499-6903
FSC Code: 5331
MPN: AS568214259

5331-01-468-5440 (AS568-013AMS3660)

NIIN: 01-468-5440
In stock
NSN: 5331-01-468-5440
FSC Code: 5331
MPN: AS568013AMS3660

5331-01-569-5380 (AS568-119AMS3660)

NIIN: 01-569-5380
In stock
NSN: 5331-01-569-5380
FSC Code: 5331
MPN: AS568119AMS3660

5331-01-480-0220 (AS568-11)

NIIN: 01-480-0220
In stock
NSN: 5331-01-480-0220
FSC Code: 5331
MPN: AS56811

5331-01-569-5375 (AS568-129AMS3660)

NIIN: 01-569-5375
In stock
NSN: 5331-01-569-5375
FSC Code: 5331
MPN: AS568129AMS3660

5331-01-462-7062 (AS568A-132FS-70)

NIIN: 01-462-7062
In stock
NSN: 5331-01-462-7062
FSC Code: 5331
MPN: AS568A132FS70

5331-01-456-3805 (AS568A-018/CR70)

NIIN: 01-456-3805
In stock
NSN: 5331-01-456-3805
FSC Code: 5331
MPN: AS568A018CR70

5331-01-452-4768 (AS568-012C90-90)

NIIN: 01-452-4768
In stock
NSN: 5331-01-452-4768
FSC Code: 5331
MPN: AS568012C9090

5331-01-569-5371 (AS568-011AMS3660)

NIIN: 01-569-5371
In stock
NSN: 5331-01-569-5371
FSC Code: 5331
MPN: AS568011AMS3660

5331-01-562-0835 (AS568-019-75VT)

NIIN: 01-562-0835
In stock
NSN: 5331-01-562-0835
FSC Code: 5331
MPN: AS56801975VT

5331-01-479-2984 (AS568-032AMS3660)

NIIN: 01-479-2984
In stock
NSN: 5331-01-479-2984
FSC Code: 5331
MPN: AS568032AMS3660

5331-01-450-0719 (AS568-001-70S)

NIIN: 01-450-0719
In stock
NSN: 5331-01-450-0719
FSC Code: 5331
MPN: AS56800170S

5331-01-387-9491 (AS568-005)

NIIN: 01-387-9491
In stock
NSN: 5331-01-387-9491
FSC Code: 5331
MPN: AS568005

5331-99-791-2899 (AS43013-233)

NIIN: 99-791-2899
In stock
NSN: 5331-99-791-2899
FSC Code: 5331
MPN: AS43013233

5331-99-647-0433 (AS43013-223)

NIIN: 99-647-0433
In stock
NSN: 5331-99-647-0433
FSC Code: 5331
MPN: AS43013223

5331-99-791-2901 (ORINGIMP04859X139FPMM80)

NIIN: 99-791-2901
In stock
NSN: 5331-99-791-2901
FSC Code: 5331
MPN: ORINGIMP04859X139FPMM80

5331-99-806-5095 (AS43013-263)

NIIN: 99-806-5095
In stock
NSN: 5331-99-806-5095
FSC Code: 5331
MPN: AS43013263

5331-99-791-2905 (AS43013-347)

NIIN: 99-791-2905
In stock
NSN: 5331-99-791-2905
FSC Code: 5331
MPN: AS43013347

5331-99-829-9930 (ASA43013-135)

NIIN: 99-829-9930
In stock
NSN: 5331-99-829-9930
FSC Code: 5331
MPN: ASA43013135

5331-99-738-9397 (AS43013-240)

NIIN: 99-738-9397
In stock
NSN: 5331-99-738-9397
FSC Code: 5331
MPN: AS43013240

5331-99-769-2156 (AS43013-021)

NIIN: 99-769-2156
In stock
NSN: 5331-99-769-2156
FSC Code: 5331
MPN: AS43013021

5331-99-738-9396 (AS43013-145-145)

NIIN: 99-738-9396
In stock
NSN: 5331-99-738-9396
FSC Code: 5331
MPN: AS43013145145

5331-01-355-5356 (AS43013-163)

NIIN: 01-355-5356
In stock
NSN: 5331-01-355-5356
FSC Code: 5331
MPN: AS43013163

5331-99-829-9945 (ASA43013-141)

NIIN: 99-829-9945
In stock
NSN: 5331-99-829-9945
FSC Code: 5331
MPN: ASA43013141

5331-99-647-2629 (AS43013-119)

NIIN: 99-647-2629
In stock
NSN: 5331-99-647-2629
FSC Code: 5331
MPN: AS43013119

5331-99-829-9543 (AS43013-132)

NIIN: 99-829-9543
In stock
NSN: 5331-99-829-9543
FSC Code: 5331
MPN: AS43013132

5331-99-829-9931 (AS43013-123)

NIIN: 99-829-9931
In stock
NSN: 5331-99-829-9931
FSC Code: 5331
MPN: AS43013123

5331-99-829-9918 (AS43013-122)

NIIN: 99-829-9918
In stock
NSN: 5331-99-829-9918
FSC Code: 5331
MPN: AS43013122

5331-99-829-9547 (AS43013-128)

NIIN: 99-829-9547
In stock
NSN: 5331-99-829-9547
FSC Code: 5331
MPN: AS43013128

5331-99-829-9938 (ASA43013-150)

NIIN: 99-829-9938
In stock
NSN: 5331-99-829-9938
FSC Code: 5331
MPN: ASA43013150

5331-99-829-9922 (AS43003-910)

NIIN: 99-829-9922
In stock
NSN: 5331-99-829-9922
FSC Code: 5331
MPN: AS43003910

5331-99-830-0574 (ASA43013-138)

NIIN: 99-830-0574
In stock
NSN: 5331-99-830-0574
FSC Code: 5331
MPN: ASA43013138

5331-99-769-8913 (AS43013-026)

NIIN: 99-769-8913
In stock
NSN: 5331-99-769-8913
FSC Code: 5331
MPN: AS43013026

5331-99-829-9544 (ASA43013-137)

NIIN: 99-829-9544
In stock
NSN: 5331-99-829-9544
FSC Code: 5331
MPN: ASA43013137

5331-99-647-4542 (AS43013-125)

NIIN: 99-647-4542
In stock
NSN: 5331-99-647-4542
FSC Code: 5331
MPN: AS43013125

5331-99-647-4539 (AS43013-129)

NIIN: 99-647-4539
In stock
NSN: 5331-99-647-4539
FSC Code: 5331
MPN: AS43013129

5331-99-647-4526 (AS43013-121)

NIIN: 99-647-4526
In stock
NSN: 5331-99-647-4526
FSC Code: 5331
MPN: AS43013121

5331-99-769-8902 (AS43013-010)

NIIN: 99-769-8902
In stock
NSN: 5331-99-769-8902
FSC Code: 5331
MPN: AS43013010

5331-99-610-6581 (AS43013-108)

NIIN: 99-610-6581
In stock
NSN: 5331-99-610-6581
FSC Code: 5331
MPN: AS43013108

5331-99-791-2891 (AS43013-040)

NIIN: 99-791-2891
In stock
NSN: 5331-99-791-2891
FSC Code: 5331
MPN: AS43013040

5331-99-769-8904 (AS43013-018)

NIIN: 99-769-8904
In stock
NSN: 5331-99-769-8904
FSC Code: 5331
MPN: AS43013018

5331-99-769-8903 (AS43013-015)

NIIN: 99-769-8903
In stock
NSN: 5331-99-769-8903
FSC Code: 5331
MPN: AS43013015