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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.

5331-00-420-0728 (000115EL)

NIIN: 00-420-0728
In stock
NSN: 5331-00-420-0728
FSC Code: 5331
MPN: 000115EL

5331-00-404-4191 (000115EE)

NIIN: 00-404-4191
In stock
NSN: 5331-00-404-4191
FSC Code: 5331
MPN: 000115EE

5331-01-028-1527 (000115ED0X)

NIIN: 01-028-1527
In stock
NSN: 5331-01-028-1527
FSC Code: 5331
MPN: 000115ED0X

5331-01-271-5153 (000116000G)

NIIN: 01-271-5153
In stock
NSN: 5331-01-271-5153
FSC Code: 5331
MPN: 000116000G

5331-00-419-6652 (000114EL)

NIIN: 00-419-6652
In stock
NSN: 5331-00-419-6652
FSC Code: 5331
MPN: 000114EL

5331-01-182-5507 (000117EB)

NIIN: 01-182-5507
In stock
NSN: 5331-01-182-5507
FSC Code: 5331
MPN: 000117EB

5331-01-252-3119 (000117000MG)

NIIN: 01-252-3119
In stock
NSN: 5331-01-252-3119
FSC Code: 5331
MPN: 000117000MG

5331-01-317-3981 (000114EE)

NIIN: 01-317-3981
In stock
NSN: 5331-01-317-3981
FSC Code: 5331
MPN: 000114EE

5331-01-229-8081 (000119EECP)

NIIN: 01-229-8081
In stock
NSN: 5331-01-229-8081
FSC Code: 5331
MPN: 000119EECP

5331-00-436-1939 (000120EB)

NIIN: 00-436-1939
In stock
NSN: 5331-00-436-1939
FSC Code: 5331
MPN: 000120EB

5331-00-542-1586 (000118EB)

NIIN: 00-542-1586
In stock
NSN: 5331-00-542-1586
FSC Code: 5331
MPN: 000118EB

5331-01-106-0942 (000120EE)

NIIN: 01-106-0942
In stock
NSN: 5331-01-106-0942
FSC Code: 5331
MPN: 000120EE

5331-00-433-1474 (000125EE)

NIIN: 00-433-1474
In stock
NSN: 5331-00-433-1474
FSC Code: 5331
MPN: 000125EE

5331-00-444-0850 (000125EB)

NIIN: 00-444-0850
In stock
NSN: 5331-00-444-0850
FSC Code: 5331
MPN: 000125EB

5331-01-178-1754 (000123EE)

NIIN: 01-178-1754
In stock
NSN: 5331-01-178-1754
FSC Code: 5331
MPN: 000123EE

5331-01-126-5150 (00012-60-00-99)

NIIN: 01-126-5150
In stock
NSN: 5331-01-126-5150
FSC Code: 5331
MPN: 00012600099

5331-00-477-1736 (000127EB)

NIIN: 00-477-1736
In stock
NSN: 5331-00-477-1736
FSC Code: 5331
MPN: 000127EB

5331-00-589-5935 (000-1281-4030)

NIIN: 00-589-5935
In stock
NSN: 5331-00-589-5935
FSC Code: 5331
MPN: 00012814030

5331-01-292-0393 (000127XX)

NIIN: 01-292-0393
In stock
NSN: 5331-01-292-0393
FSC Code: 5331
MPN: 000127XX

5331-00-435-1015 (000127EA)

NIIN: 00-435-1015
In stock
NSN: 5331-00-435-1015
FSC Code: 5331
MPN: 000127EA

5331-00-163-9773 (000128000G)

NIIN: 00-163-9773
In stock
NSN: 5331-00-163-9773
FSC Code: 5331
MPN: 000128000G

5331-00-242-0701 (00013200MG)

NIIN: 00-242-0701
In stock
NSN: 5331-00-242-0701
FSC Code: 5331
MPN: 00013200MG

5331-01-294-9452 (00013100MG)

NIIN: 01-294-9452
In stock
NSN: 5331-01-294-9452
FSC Code: 5331
MPN: 00013100MG

5331-01-178-1753 (000131EE)

NIIN: 01-178-1753
In stock
NSN: 5331-01-178-1753
FSC Code: 5331
MPN: 000131EE

5331-01-126-0870 (000-138-030)

NIIN: 01-126-0870
In stock
NSN: 5331-01-126-0870
FSC Code: 5331
MPN: 000138030

5331-00-185-2012 (000-1360)

NIIN: 00-185-2012
In stock
NSN: 5331-00-185-2012
FSC Code: 5331
MPN: 0001360

5331-00-297-7113 (000136EB)

NIIN: 00-297-7113
In stock
NSN: 5331-00-297-7113
FSC Code: 5331
MPN: 000136EB

5331-00-691-0144 (000138EB)

NIIN: 00-691-0144
In stock
NSN: 5331-00-691-0144
FSC Code: 5331
MPN: 000138EB

5331-00-185-2000 (000-1390)

NIIN: 00-185-2000
In stock
NSN: 5331-00-185-2000
FSC Code: 5331
MPN: 0001390

5331-01-228-7543 (000144EB)

NIIN: 01-228-7543
In stock
NSN: 5331-01-228-7543
FSC Code: 5331
MPN: 000144EB

5331-01-139-0605 (000140XX)

NIIN: 01-139-0605
In stock
NSN: 5331-01-139-0605
FSC Code: 5331
MPN: 000140XX

5331-01-216-5701 (00014688)

NIIN: 01-216-5701
In stock
NSN: 5331-01-216-5701
FSC Code: 5331
MPN: 00014688

5331-00-167-5136 (000150EB)

NIIN: 00-167-5136
In stock
NSN: 5331-00-167-5136
FSC Code: 5331
MPN: 000150EB

5331-00-417-9732 (000147EE)

NIIN: 00-417-9732
In stock
NSN: 5331-00-417-9732
FSC Code: 5331
MPN: 000147EE

5331-00-450-0021 (000-15300MG)

NIIN: 00-450-0021
In stock
NSN: 5331-00-450-0021
FSC Code: 5331
MPN: 00015300MG

5331-01-138-5268 (000152EB)

NIIN: 01-138-5268
In stock
NSN: 5331-01-138-5268
FSC Code: 5331
MPN: 000152EB

5331-01-200-3758 (000155EB)

NIIN: 01-200-3758
In stock
NSN: 5331-01-200-3758
FSC Code: 5331
MPN: 000155EB

5331-01-122-0829 (000155KB)

NIIN: 01-122-0829
In stock
NSN: 5331-01-122-0829
FSC Code: 5331
MPN: 000155KB

5331-01-237-5233 (00017262)

NIIN: 01-237-5233
In stock
NSN: 5331-01-237-5233
FSC Code: 5331
MPN: 00017262

5331-01-043-5816 (000172EB)

NIIN: 01-043-5816
In stock
NSN: 5331-01-043-5816
FSC Code: 5331
MPN: 000172EB

5331-00-140-7724 (0001846580)

NIIN: 00-140-7724
In stock
NSN: 5331-00-140-7724
FSC Code: 5331
MPN: 0001846580

5331-01-051-5541 (000-200-0718)

NIIN: 01-051-5541
In stock
NSN: 5331-01-051-5541
FSC Code: 5331
MPN: 0002000718

5331-00-166-8700 (000-210)

NIIN: 00-166-8700
In stock
NSN: 5331-00-166-8700
FSC Code: 5331
MPN: 000210

5331-00-606-9816 (00021000ML)

NIIN: 00-606-9816
In stock
NSN: 5331-00-606-9816
FSC Code: 5331
MPN: 00021000ML

5331-01-166-1578 (000212EE)

NIIN: 01-166-1578
In stock
NSN: 5331-01-166-1578
FSC Code: 5331
MPN: 000212EE

5331-00-263-9405 (000212EB)

NIIN: 00-263-9405
In stock
NSN: 5331-00-263-9405
FSC Code: 5331
MPN: 000212EB

5331-00-185-0525 (000210EL)

NIIN: 00-185-0525
In stock
NSN: 5331-00-185-0525
FSC Code: 5331
MPN: 000210EL

5331-00-316-8195 (000212ED)

NIIN: 00-316-8195
In stock
NSN: 5331-00-316-8195
FSC Code: 5331
MPN: 000212ED