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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.

5331-01-472-7009 (9-926-105096)

NIIN: 01-472-7009
In stock
NSN: 5331-01-472-7009
FSC Code: 5331
MPN: 9926105096

5331-01-472-7178 (9-926-110732)

NIIN: 01-472-7178
In stock
NSN: 5331-01-472-7178
FSC Code: 5331
MPN: 9926110732

5331-01-357-0102 (9-926-106222)

NIIN: 01-357-0102
In stock
NSN: 5331-01-357-0102
FSC Code: 5331
MPN: 9926106222

5331-01-472-7039 (9-926-105097)

NIIN: 01-472-7039
In stock
NSN: 5331-01-472-7039
FSC Code: 5331
MPN: 9926105097

5331-01-472-7133 (9-926-105098)

NIIN: 01-472-7133
In stock
NSN: 5331-01-472-7133
FSC Code: 5331
MPN: 9926105098

5331-01-472-9190 (9-926-101775)

NIIN: 01-472-9190
In stock
NSN: 5331-01-472-9190
FSC Code: 5331
MPN: 9926101775

5331-01-520-6000 (992-1451)

NIIN: 01-520-6000
In stock
NSN: 5331-01-520-6000
FSC Code: 5331
MPN: 9921451

5331-01-473-4380 (EMC-02-0017)

NIIN: 01-473-4380
In stock
NSN: 5331-01-473-4380
FSC Code: 5331
MPN: EMC020017

5331-01-473-4379 (EMC-02-0020)

NIIN: 01-473-4379
In stock
NSN: 5331-01-473-4379
FSC Code: 5331
MPN: EMC020020

5331-01-473-4377 (EMC-02-0035)

NIIN: 01-473-4377
In stock
NSN: 5331-01-473-4377
FSC Code: 5331
MPN: EMC020035

5331-01-438-7603 (99136-12-16)

NIIN: 01-438-7603
In stock
NSN: 5331-01-438-7603
FSC Code: 5331
MPN: 991361216

5331-01-478-0043 (99-1103-5-D1)

NIIN: 01-478-0043
In stock
NSN: 5331-01-478-0043
FSC Code: 5331
MPN: 9911035D1

5331-01-533-4762 (9910-161)

NIIN: 01-533-4762
In stock
NSN: 5331-01-533-4762
FSC Code: 5331
MPN: 9910161

5331-15-179-8767 (990R123268SNO)

NIIN: 15-179-8767
In stock
NSN: 5331-15-179-8767
FSC Code: 5331
MPN: 990R123268SNO

5331-15-179-8766 (990R123268SNO)

NIIN: 15-179-8766
In stock
NSN: 5331-15-179-8766
FSC Code: 5331
MPN: 990R123268SNO

5331-01-533-4761 (9908-161)

NIIN: 01-533-4761
In stock
NSN: 5331-01-533-4761
FSC Code: 5331
MPN: 9908161

5331-01-441-5790 (9903-987)

NIIN: 01-441-5790
In stock
NSN: 5331-01-441-5790
FSC Code: 5331
MPN: 9903987

5331-01-547-2049 (990-103-007)

NIIN: 01-547-2049
In stock
NSN: 5331-01-547-2049
FSC Code: 5331
MPN: 990103007

5331-01-414-5030 (98A3901)

NIIN: 01-414-5030
In stock
NSN: 5331-01-414-5030
FSC Code: 5331
MPN: 98A3901

5331-01-381-2824 (98602/87)

NIIN: 01-381-2824
In stock
NSN: 5331-01-381-2824
FSC Code: 5331
MPN: 9860287

5331-01-520-8753 (982-8371)

NIIN: 01-520-8753
In stock
NSN: 5331-01-520-8753
FSC Code: 5331
MPN: 9828371

5331-01-520-5739 (982-8397)

NIIN: 01-520-5739
In stock
NSN: 5331-01-520-5739
FSC Code: 5331
MPN: 9828397

5331-01-520-6463 (982-0329)

NIIN: 01-520-6463
In stock
NSN: 5331-01-520-6463
FSC Code: 5331
MPN: 9820329

5331-01-568-1131 (98175A215)

NIIN: 01-568-1131
In stock
NSN: 5331-01-568-1131
FSC Code: 5331
MPN: 98175A215

5331-01-508-9990 (98159-2)

NIIN: 01-508-9990
In stock
NSN: 5331-01-508-9990
FSC Code: 5331
MPN: 981592

5331-01-508-9991 (98137-2)

NIIN: 01-508-9991
In stock
NSN: 5331-01-508-9991
FSC Code: 5331
MPN: 981372

5331-01-509-1204 (98118-2)

NIIN: 01-509-1204
In stock
NSN: 5331-01-509-1204
FSC Code: 5331
MPN: 981182

5331-01-387-4096 (981-1290)

NIIN: 01-387-4096
In stock
NSN: 5331-01-387-4096
FSC Code: 5331
MPN: 9811290

5331-01-387-4094 (981-1273)

NIIN: 01-387-4094
In stock
NSN: 5331-01-387-4094
FSC Code: 5331
MPN: 9811273

5331-01-388-1008 (981-0463)

NIIN: 01-388-1008
In stock
NSN: 5331-01-388-1008
FSC Code: 5331
MPN: 9810463

5331-01-551-7953 (980A0014K67)

NIIN: 01-551-7953
In stock
NSN: 5331-01-551-7953
FSC Code: 5331
MPN: 980A0014K67

5331-01-468-6963 (980A0012K69)

NIIN: 01-468-6963
In stock
NSN: 5331-01-468-6963
FSC Code: 5331
MPN: 980A0012K69

5331-01-551-7952 (980A0014K47)

NIIN: 01-551-7952
In stock
NSN: 5331-01-551-7952
FSC Code: 5331
MPN: 980A0014K47

5331-01-568-0986 (980A0014A60)

NIIN: 01-568-0986
In stock
NSN: 5331-01-568-0986
FSC Code: 5331
MPN: 980A0014A60

5331-01-468-5542 (980A0012K71)

NIIN: 01-468-5542
In stock
NSN: 5331-01-468-5542
FSC Code: 5331
MPN: 980A0012K71

5331-01-484-7922 (980A0014H71)

NIIN: 01-484-7922
In stock
NSN: 5331-01-484-7922
FSC Code: 5331
MPN: 980A0014H71

5331-01-551-7949 (980A0014B91)

NIIN: 01-551-7949
In stock
NSN: 5331-01-551-7949
FSC Code: 5331
MPN: 980A0014B91

5331-01-551-7948 (980A0014B87)

NIIN: 01-551-7948
In stock
NSN: 5331-01-551-7948
FSC Code: 5331
MPN: 980A0014B87

5331-01-562-1767 (980A0012H70)

NIIN: 01-562-1767
In stock
NSN: 5331-01-562-1767
FSC Code: 5331
MPN: 980A0012H70

5331-01-551-7947 (980A0014B90)

NIIN: 01-551-7947
In stock
NSN: 5331-01-551-7947
FSC Code: 5331
MPN: 980A0014B90

5331-01-562-4433 (980A0014B84)

NIIN: 01-562-4433
In stock
NSN: 5331-01-562-4433
FSC Code: 5331
MPN: 980A0014B84

5331-01-468-7211 (980A0012K66)

NIIN: 01-468-7211
In stock
NSN: 5331-01-468-7211
FSC Code: 5331
MPN: 980A0012K66

5331-01-551-7951 (980A0014B97)

NIIN: 01-551-7951
In stock
NSN: 5331-01-551-7951
FSC Code: 5331
MPN: 980A0014B97

5331-01-468-7303 (980A0012H13)

NIIN: 01-468-7303
In stock
NSN: 5331-01-468-7303
FSC Code: 5331
MPN: 980A0012H13

5331-01-551-7950 (980A0014B88)

NIIN: 01-551-7950
In stock
NSN: 5331-01-551-7950
FSC Code: 5331
MPN: 980A0014B88

5331-01-469-1177 (980A0012B52)

NIIN: 01-469-1177
In stock
NSN: 5331-01-469-1177
FSC Code: 5331
MPN: 980A0012B52

5331-01-468-7422 (980A0012H02)

NIIN: 01-468-7422
In stock
NSN: 5331-01-468-7422
FSC Code: 5331
MPN: 980A0012H02

5331-01-468-7288 (980A0012K60)

NIIN: 01-468-7288
In stock
NSN: 5331-01-468-7288
FSC Code: 5331
MPN: 980A0012K60