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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.

5331-01-497-0554 (PL14590N18-456A)

NIIN: 01-497-0554
In stock
NSN: 5331-01-497-0554
FSC Code: 5331
MPN: PL14590N18456A

5331-01-468-3533 (20A11EM008)

NIIN: 01-468-3533
In stock
NSN: 5331-01-468-3533
FSC Code: 5331
MPN: 20A11EM008

5331-01-425-8594 (20A11EM128)

NIIN: 01-425-8594
In stock
NSN: 5331-01-425-8594
FSC Code: 5331
MPN: 20A11EM128

5331-01-458-5471 (20A11CM223)

NIIN: 01-458-5471
In stock
NSN: 5331-01-458-5471
FSC Code: 5331
MPN: 20A11CM223

5331-01-438-1666 (20A11EM155)

NIIN: 01-438-1666
In stock
NSN: 5331-01-438-1666
FSC Code: 5331
MPN: 20A11EM155

5331-01-458-5470 (20A11EM120)

NIIN: 01-458-5470
In stock
NSN: 5331-01-458-5470
FSC Code: 5331
MPN: 20A11EM120

5331-01-406-8254 (20A11EM222)

NIIN: 01-406-8254
In stock
NSN: 5331-01-406-8254
FSC Code: 5331
MPN: 20A11EM222

5331-01-459-3201 (20A11CM023)

NIIN: 01-459-3201
In stock
NSN: 5331-01-459-3201
FSC Code: 5331
MPN: 20A11CM023

5331-01-458-2588 (20A11CM113)

NIIN: 01-458-2588
In stock
NSN: 5331-01-458-2588
FSC Code: 5331
MPN: 20A11CM113

5331-01-426-0389 (20A11EM045)

NIIN: 01-426-0389
In stock
NSN: 5331-01-426-0389
FSC Code: 5331
MPN: 20A11EM045

5331-01-526-3034 (ML12535266G1)

NIIN: 01-526-3034
In stock
NSN: 5331-01-526-3034
FSC Code: 5331
MPN: ML12535266G1

5331-01-482-7920 (20A11CM248)

NIIN: 01-482-7920
In stock
NSN: 5331-01-482-7920
FSC Code: 5331
MPN: 20A11CM248

5331-01-459-3199 (20A11CM027)

NIIN: 01-459-3199
In stock
NSN: 5331-01-459-3199
FSC Code: 5331
MPN: 20A11CM027

5331-01-426-0399 (20A11EM012)

NIIN: 01-426-0399
In stock
NSN: 5331-01-426-0399
FSC Code: 5331
MPN: 20A11EM012

5331-01-526-2931 (ML12535266G1)

NIIN: 01-526-2931
In stock
NSN: 5331-01-526-2931
FSC Code: 5331
MPN: ML12535266G1

5331-01-512-5187 (20A11CM016)

NIIN: 01-512-5187
In stock
NSN: 5331-01-512-5187
FSC Code: 5331
MPN: 20A11CM016

5331-01-425-8647 (20A11EM028)

NIIN: 01-425-8647
In stock
NSN: 5331-01-425-8647
FSC Code: 5331
MPN: 20A11EM028

5331-01-526-3053 (ML12535266G1)

NIIN: 01-526-3053
In stock
NSN: 5331-01-526-3053
FSC Code: 5331
MPN: ML12535266G1

5331-01-526-3023 (ML12535266G1)

NIIN: 01-526-3023
In stock
NSN: 5331-01-526-3023
FSC Code: 5331
MPN: ML12535266G1

5331-01-507-8845 (20A11C2M230)

NIIN: 01-507-8845
In stock
NSN: 5331-01-507-8845
FSC Code: 5331
MPN: 20A11C2M230

5331-01-441-6402 (20A11CM028)

NIIN: 01-441-6402
In stock
NSN: 5331-01-441-6402
FSC Code: 5331
MPN: 20A11CM028

5331-01-458-5475 (20A11CM020)

NIIN: 01-458-5475
In stock
NSN: 5331-01-458-5475
FSC Code: 5331
MPN: 20A11CM020

5331-01-406-8248 (20A11C2M147)

NIIN: 01-406-8248
In stock
NSN: 5331-01-406-8248
FSC Code: 5331
MPN: 20A11C2M147

5331-01-502-6867 (20A11C2M252)

NIIN: 01-502-6867
In stock
NSN: 5331-01-502-6867
FSC Code: 5331
MPN: 20A11C2M252

5331-01-458-5477 (20A11CM012)

NIIN: 01-458-5477
In stock
NSN: 5331-01-458-5477
FSC Code: 5331
MPN: 20A11CM012

5331-00-103-0658 (58-114-15)

NIIN: 00-103-0658
In stock
NSN: 5331-00-103-0658
FSC Code: 5331
MPN: 5811415

5331-01-017-8910 (58-110-06)

NIIN: 01-017-8910
In stock
NSN: 5331-01-017-8910
FSC Code: 5331
MPN: 5811006

5331-01-440-1771 (72S0183M1080)

NIIN: 01-440-1771
In stock
NSN: 5331-01-440-1771
FSC Code: 5331
MPN: 72S0183M1080

5331-01-508-6549 (209-4455291ITEMF114)

NIIN: 01-508-6549
In stock
NSN: 5331-01-508-6549
FSC Code: 5331
MPN: 2094455291ITEMF114

5331-01-352-1079 (2092P)

NIIN: 01-352-1079
In stock
NSN: 5331-01-352-1079
FSC Code: 5331
MPN: 2092P

5331-01-535-0057 (209-104)

NIIN: 01-535-0057
In stock
NSN: 5331-01-535-0057
FSC Code: 5331
MPN: 209104

5331-00-584-9561 (58057K159)

NIIN: 00-584-9561
In stock
NSN: 5331-00-584-9561
FSC Code: 5331
MPN: 58057K159

5331-00-834-6880 (58057AH7)

NIIN: 00-834-6880
In stock
NSN: 5331-00-834-6880
FSC Code: 5331
MPN: 58057AH7

5331-00-684-7953 (58057AA20)

NIIN: 00-684-7953
In stock
NSN: 5331-00-684-7953
FSC Code: 5331
MPN: 58057AA20

5331-00-599-0065 (58057-10)

NIIN: 00-599-0065
In stock
NSN: 5331-00-599-0065
FSC Code: 5331
MPN: 5805710

5331-01-077-5226 (58-04-99)

NIIN: 01-077-5226
In stock
NSN: 5331-01-077-5226
FSC Code: 5331
MPN: 580499

5331-01-077-5225 (58-04-73)

NIIN: 01-077-5225
In stock
NSN: 5331-01-077-5225
FSC Code: 5331
MPN: 580473

5331-01-077-5224 (58-04-58)

NIIN: 01-077-5224
In stock
NSN: 5331-01-077-5224
FSC Code: 5331
MPN: 580458

5331-01-077-5223 (58-03-33)

NIIN: 01-077-5223
In stock
NSN: 5331-01-077-5223
FSC Code: 5331
MPN: 580333

5331-01-077-0959 (58-03-28)

NIIN: 01-077-0959
In stock
NSN: 5331-01-077-0959
FSC Code: 5331
MPN: 580328

5331-01-227-2199 (58-022-30)

NIIN: 01-227-2199
In stock
NSN: 5331-01-227-2199
FSC Code: 5331
MPN: 5802230

5331-00-459-9835 (58-022-21)

NIIN: 00-459-9835
In stock
NSN: 5331-00-459-9835
FSC Code: 5331
MPN: 5802221

5331-01-054-5989 (58-016-23)

NIIN: 01-054-5989
In stock
NSN: 5331-01-054-5989
FSC Code: 5331
MPN: 5801623

5331-01-256-8513 (58-008-50)

NIIN: 01-256-8513
In stock
NSN: 5331-01-256-8513
FSC Code: 5331
MPN: 5800850

5331-01-146-3609 (58-014-15CP)

NIIN: 01-146-3609
In stock
NSN: 5331-01-146-3609
FSC Code: 5331
MPN: 5801415CP

5331-00-052-6653 (58-014-30)

NIIN: 00-052-6653
In stock
NSN: 5331-00-052-6653
FSC Code: 5331
MPN: 5801430

5331-00-435-9013 (58-013-33)

NIIN: 00-435-9013
In stock
NSN: 5331-00-435-9013
FSC Code: 5331
MPN: 5801333

5331-00-839-1939 (58-010-33)

NIIN: 00-839-1939
In stock
NSN: 5331-00-839-1939
FSC Code: 5331
MPN: 5801033