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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.

5331-01-361-2901 (26147-02-154-70)

NIIN: 01-361-2901
In stock
NSN: 5331-01-361-2901
FSC Code: 5331
MPN: 261470215470

5331-01-361-2900 (26147-02-338-70)

NIIN: 01-361-2900
In stock
NSN: 5331-01-361-2900
FSC Code: 5331
MPN: 261470233870

5331-01-449-9918 (N0366-03432-965)

NIIN: 01-449-9918
In stock
NSN: 5331-01-449-9918
FSC Code: 5331
MPN: N036603432965

5331-01-523-3692 (26-12709)

NIIN: 01-523-3692
In stock
NSN: 5331-01-523-3692
FSC Code: 5331
MPN: 2612709

5331-99-829-9936 (AS43003-907)

NIIN: 99-829-9936
In stock
NSN: 5331-99-829-9936
FSC Code: 5331
MPN: AS43003907

5331-99-752-7601 (AS43013-151)

NIIN: 99-752-7601
In stock
NSN: 5331-99-752-7601
FSC Code: 5331
MPN: AS43013151

5331-01-386-2720 (26121-7498)

NIIN: 01-386-2720
In stock
NSN: 5331-01-386-2720
FSC Code: 5331
MPN: 261217498

5331-99-517-4252 (5330-99-302-1454)

NIIN: 99-517-4252
In stock
NSN: 5331-99-517-4252
FSC Code: 5331
MPN: 5330993021454

5331-01-346-1474 (26-116)

NIIN: 01-346-1474
In stock
NSN: 5331-01-346-1474
FSC Code: 5331
MPN: 26116

5331-01-453-5089 (261-0215-009)

NIIN: 01-453-5089
In stock
NSN: 5331-01-453-5089
FSC Code: 5331
MPN: 2610215009

5331-01-453-5087 (261-0215-008)

NIIN: 01-453-5087
In stock
NSN: 5331-01-453-5087
FSC Code: 5331
MPN: 2610215008

5331-01-453-5084 (261-0215-004)

NIIN: 01-453-5084
In stock
NSN: 5331-01-453-5084
FSC Code: 5331
MPN: 2610215004

5331-01-398-5199 (2609782-223)

NIIN: 01-398-5199
In stock
NSN: 5331-01-398-5199
FSC Code: 5331
MPN: 2609782223

5331-01-398-5200 (2609782-011)

NIIN: 01-398-5200
In stock
NSN: 5331-01-398-5200
FSC Code: 5331
MPN: 2609782011

5331-01-398-5204 (2606457-8)

NIIN: 01-398-5204
In stock
NSN: 5331-01-398-5204
FSC Code: 5331
MPN: 26064578

5331-01-418-4587 (26-0601-79-02)

NIIN: 01-418-4587
In stock
NSN: 5331-01-418-4587
FSC Code: 5331
MPN: 2606017902

5331-01-398-5201 (2606136-228)

NIIN: 01-398-5201
In stock
NSN: 5331-01-398-5201
FSC Code: 5331
MPN: 2606136228

5331-01-462-7299 (2606136-227)

NIIN: 01-462-7299
In stock
NSN: 5331-01-462-7299
FSC Code: 5331
MPN: 2606136227

5331-01-438-3693 (2606136-215)

NIIN: 01-438-3693
In stock
NSN: 5331-01-438-3693
FSC Code: 5331
MPN: 2606136215

5331-00-167-5163 (63B0218-450)

NIIN: 00-167-5163
In stock
NSN: 5331-00-167-5163
FSC Code: 5331
MPN: 63B0218450

5331-00-938-8470 (63A68C6117)

NIIN: 00-938-8470
In stock
NSN: 5331-00-938-8470
FSC Code: 5331
MPN: 63A68C6117

5331-00-938-8487 (63A68C37)

NIIN: 00-938-8487
In stock
NSN: 5331-00-938-8487
FSC Code: 5331
MPN: 63A68C37

5331-00-115-1360 (63A68C2574)

NIIN: 00-115-1360
In stock
NSN: 5331-00-115-1360
FSC Code: 5331
MPN: 63A68C2574

5331-01-474-1372 (2603509-35CP)

NIIN: 01-474-1372
In stock
NSN: 5331-01-474-1372
FSC Code: 5331
MPN: 260350935CP

5331-01-458-3862 (2603169-35CP)

NIIN: 01-458-3862
In stock
NSN: 5331-01-458-3862
FSC Code: 5331
MPN: 260316935CP

5331-01-458-3868 (2603169-37CP)

NIIN: 01-458-3868
In stock
NSN: 5331-01-458-3868
FSC Code: 5331
MPN: 260316937CP

5331-01-458-3986 (2603169-33CP)

NIIN: 01-458-3986
In stock
NSN: 5331-01-458-3986
FSC Code: 5331
MPN: 260316933CP

5331-01-458-3980 (2603169-17CP)

NIIN: 01-458-3980
In stock
NSN: 5331-01-458-3980
FSC Code: 5331
MPN: 260316917CP

5331-01-458-3989 (2603169-39CP)

NIIN: 01-458-3989
In stock
NSN: 5331-01-458-3989
FSC Code: 5331
MPN: 260316939CP

5331-01-458-3816 (2603169-19CP)

NIIN: 01-458-3816
In stock
NSN: 5331-01-458-3816
FSC Code: 5331
MPN: 260316919CP

5331-01-565-1882 (990-008-007)

NIIN: 01-565-1882
In stock
NSN: 5331-01-565-1882
FSC Code: 5331
MPN: 990008007

5331-01-360-0944 (26-0204-10-03)

NIIN: 01-360-0944
In stock
NSN: 5331-01-360-0944
FSC Code: 5331
MPN: 2602041003

5331-01-457-4611 (M70341/1-040CP)

NIIN: 01-457-4611
In stock
NSN: 5331-01-457-4611
FSC Code: 5331
MPN: M703411040CP

5331-01-457-4613 (M70341/1-038CP)

NIIN: 01-457-4613
In stock
NSN: 5331-01-457-4613
FSC Code: 5331
MPN: M703411038CP

5331-01-543-1881 (2601425-904)

NIIN: 01-543-1881
In stock
NSN: 5331-01-543-1881
FSC Code: 5331
MPN: 2601425904

5331-01-370-6919 (2601424-018)

NIIN: 01-370-6919
In stock
NSN: 5331-01-370-6919
FSC Code: 5331
MPN: 2601424018

5331-01-457-4596 (M70341/1-034CP)

NIIN: 01-457-4596
In stock
NSN: 5331-01-457-4596
FSC Code: 5331
MPN: M703411034CP

5331-01-457-4603 (M70341/1-038CP)

NIIN: 01-457-4603
In stock
NSN: 5331-01-457-4603
FSC Code: 5331
MPN: M703411038CP

5331-01-457-4588 (M70341/1-022CP)

NIIN: 01-457-4588
In stock
NSN: 5331-01-457-4588
FSC Code: 5331
MPN: M703411022CP

5331-01-457-4622 (M70341/1-037CP)

NIIN: 01-457-4622
In stock
NSN: 5331-01-457-4622
FSC Code: 5331
MPN: M703411037CP

5331-01-562-2962 (260104-28)

NIIN: 01-562-2962
In stock
NSN: 5331-01-562-2962
FSC Code: 5331
MPN: 26010428

5331-01-562-2953 (260104-69)

NIIN: 01-562-2953
In stock
NSN: 5331-01-562-2953
FSC Code: 5331
MPN: 26010469

5331-01-391-4381 (26002-70)

NIIN: 01-391-4381
In stock
NSN: 5331-01-391-4381
FSC Code: 5331
MPN: 2600270

5331-01-324-5269 (6397408-PC204)

NIIN: 01-324-5269
In stock
NSN: 5331-01-324-5269
FSC Code: 5331
MPN: 6397408PC204

5331-01-359-1293 (5-1017N756-75)

NIIN: 01-359-1293
In stock
NSN: 5331-01-359-1293
FSC Code: 5331
MPN: 51017N75675

5331-01-385-1676 (26.5X15X1.5)

NIIN: 01-385-1676
In stock
NSN: 5331-01-385-1676
FSC Code: 5331
MPN: 265X15X15

5331-01-384-2470 (25X13X2)

NIIN: 01-384-2470
In stock
NSN: 5331-01-384-2470
FSC Code: 5331
MPN: 25X13X2

5331-01-460-9137 (8024N906)

NIIN: 01-460-9137
In stock
NSN: 5331-01-460-9137
FSC Code: 5331
MPN: 8024N906