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.

5331-01-277-0176 (81218-0005)

NIIN: 01-277-0176
In stock
NSN: 5331-01-277-0176
FSC Code: 5331
MPN: 812180005

5331-01-421-2895 (405-26X5-34)

NIIN: 01-421-2895
In stock
NSN: 5331-01-421-2895
FSC Code: 5331
MPN: 40526X534

5331-01-481-7435 (40511-1)

NIIN: 01-481-7435
In stock
NSN: 5331-01-481-7435
FSC Code: 5331
MPN: 405111

5331-01-481-6938 (40511-8)

NIIN: 01-481-6938
In stock
NSN: 5331-01-481-6938
FSC Code: 5331
MPN: 405118

5331-01-481-6940 (40511-9)

NIIN: 01-481-6940
In stock
NSN: 5331-01-481-6940
FSC Code: 5331
MPN: 405119

5331-01-481-6942 (40511-13)

NIIN: 01-481-6942
In stock
NSN: 5331-01-481-6942
FSC Code: 5331
MPN: 4051113

5331-01-481-6941 (40511-11)

NIIN: 01-481-6941
In stock
NSN: 5331-01-481-6941
FSC Code: 5331
MPN: 4051111

5331-01-481-6939 (40511-2)

NIIN: 01-481-6939
In stock
NSN: 5331-01-481-6939
FSC Code: 5331
MPN: 405112

5331-01-481-6185 (40511-5)

NIIN: 01-481-6185
In stock
NSN: 5331-01-481-6185
FSC Code: 5331
MPN: 405115

5331-01-481-6183 (40511-4)

NIIN: 01-481-6183
In stock
NSN: 5331-01-481-6183
FSC Code: 5331
MPN: 405114

5331-01-481-6187 (40511-14)

NIIN: 01-481-6187
In stock
NSN: 5331-01-481-6187
FSC Code: 5331
MPN: 4051114

5331-01-481-6929 (40511-10)

NIIN: 01-481-6929
In stock
NSN: 5331-01-481-6929
FSC Code: 5331
MPN: 4051110

5331-01-451-5951 (405-012)

NIIN: 01-451-5951
In stock
NSN: 5331-01-451-5951
FSC Code: 5331
MPN: 405012

5331-01-441-4577 (405-012)

NIIN: 01-441-4577
In stock
NSN: 5331-01-441-4577
FSC Code: 5331
MPN: 405012

5331-01-452-6481 (405-011)

NIIN: 01-452-6481
In stock
NSN: 5331-01-452-6481
FSC Code: 5331
MPN: 405011

5331-01-551-9830 (404-R)

NIIN: 01-551-9830
In stock
NSN: 5331-01-551-9830
FSC Code: 5331
MPN: 404R

5331-01-041-9175 (8115-MNP-082-10)

NIIN: 01-041-9175
In stock
NSN: 5331-01-041-9175
FSC Code: 5331
MPN: 8115MNP08210

5331-01-041-9173 (8115-MNP-082-9)

NIIN: 01-041-9173
In stock
NSN: 5331-01-041-9173
FSC Code: 5331
MPN: 8115MNP0829

5331-01-041-9176 (8115-MNP-082-11)

NIIN: 01-041-9176
In stock
NSN: 5331-01-041-9176
FSC Code: 5331
MPN: 8115MNP08211

5331-01-481-6182 (40499-13)

NIIN: 01-481-6182
In stock
NSN: 5331-01-481-6182
FSC Code: 5331
MPN: 4049913

5331-01-481-6931 (40499-7)

NIIN: 01-481-6931
In stock
NSN: 5331-01-481-6931
FSC Code: 5331
MPN: 404997

5331-00-964-4027 (8114-70116)

NIIN: 00-964-4027
In stock
NSN: 5331-00-964-4027
FSC Code: 5331
MPN: 811470116

5331-01-481-6933 (40499-9)

NIIN: 01-481-6933
In stock
NSN: 5331-01-481-6933
FSC Code: 5331
MPN: 404999

5331-01-481-6928 (40499-5)

NIIN: 01-481-6928
In stock
NSN: 5331-01-481-6928
FSC Code: 5331
MPN: 404995

5331-01-211-7355 (8-1151)

NIIN: 01-211-7355
In stock
NSN: 5331-01-211-7355
FSC Code: 5331
MPN: 81151

5331-01-481-6930 (40499-10)

NIIN: 01-481-6930
In stock
NSN: 5331-01-481-6930
FSC Code: 5331
MPN: 4049910

5331-01-481-7436 (40499-6)

NIIN: 01-481-7436
In stock
NSN: 5331-01-481-7436
FSC Code: 5331
MPN: 404996

5331-01-481-6181 (40499-4)

NIIN: 01-481-6181
In stock
NSN: 5331-01-481-6181
FSC Code: 5331
MPN: 404994

5331-01-481-6186 (40499-14)

NIIN: 01-481-6186
In stock
NSN: 5331-01-481-6186
FSC Code: 5331
MPN: 4049914

5331-01-481-6184 (40499-11)

NIIN: 01-481-6184
In stock
NSN: 5331-01-481-6184
FSC Code: 5331
MPN: 4049911

5331-01-481-6936 (40499-15)

NIIN: 01-481-6936
In stock
NSN: 5331-01-481-6936
FSC Code: 5331
MPN: 4049915

5331-01-174-2667 (8-1147)

NIIN: 01-174-2667
In stock
NSN: 5331-01-174-2667
FSC Code: 5331
MPN: 81147

5331-01-372-1273 (SAE-AS83461/1)

NIIN: 01-372-1273
In stock
NSN: 5331-01-372-1273
FSC Code: 5331
MPN: SAEAS834611

5331-01-304-9272 (81-11-150--04)

NIIN: 01-304-9272
In stock
NSN: 5331-01-304-9272
FSC Code: 5331
MPN: 811115004

5331-01-319-2029 (81-11.150.47)

NIIN: 01-319-2029
In stock
NSN: 5331-01-319-2029
FSC Code: 5331
MPN: 811115047

5331-00-844-3223 (8110-70116)

NIIN: 00-844-3223
In stock
NSN: 5331-00-844-3223
FSC Code: 5331
MPN: 811070116

5331-00-510-1616 (8110-039)

NIIN: 00-510-1616
In stock
NSN: 5331-00-510-1616
FSC Code: 5331
MPN: 8110039

5331-01-320-3439 (81-10.150.13)

NIIN: 01-320-3439
In stock
NSN: 5331-01-320-3439
FSC Code: 5331
MPN: 811015013

5331-01-319-2028 (81-10.150.29)

NIIN: 01-319-2028
In stock
NSN: 5331-01-319-2028
FSC Code: 5331
MPN: 811015029

5331-00-836-9739 (810C)

NIIN: 00-836-9739
In stock
NSN: 5331-00-836-9739
FSC Code: 5331
MPN: 810C

5331-00-836-9738 (810B)

NIIN: 00-836-9738
In stock
NSN: 5331-00-836-9738
FSC Code: 5331
MPN: 810B

5331-01-088-2006 (810AS1062)

NIIN: 01-088-2006
In stock
NSN: 5331-01-088-2006
FSC Code: 5331
MPN: 810AS1062

5331-01-365-4409 (404-187)

NIIN: 01-365-4409
In stock
NSN: 5331-01-365-4409
FSC Code: 5331
MPN: 404187

5331-01-144-8818 (81-074-02)

NIIN: 01-144-8818
In stock
NSN: 5331-01-144-8818
FSC Code: 5331
MPN: 8107402

5331-00-505-5079 (810-4444600PC20)

NIIN: 00-505-5079
In stock
NSN: 5331-00-505-5079
FSC Code: 5331
MPN: 8104444600PC20

5331-00-505-5274 (810-4444600PC49)

NIIN: 00-505-5274
In stock
NSN: 5331-00-505-5274
FSC Code: 5331
MPN: 8104444600PC49

5331-00-505-5273 (810-4444600PC48)

NIIN: 00-505-5273
In stock
NSN: 5331-00-505-5273
FSC Code: 5331
MPN: 8104444600PC48

5331-00-364-9883 (810-4384539-52)

NIIN: 00-364-9883
In stock
NSN: 5331-00-364-9883
FSC Code: 5331
MPN: 810438453952