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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.

5331-01-483-9337 (S9026N016)

NIIN: 01-483-9337
In stock
NSN: 5331-01-483-9337
FSC Code: 5331
MPN: S9026N016

5331-01-514-6132 (S9026HSN012)

NIIN: 01-514-6132
In stock
NSN: 5331-01-514-6132
FSC Code: 5331
MPN: S9026HSN012

5331-01-514-4988 (S9026HSN030)

NIIN: 01-514-4988
In stock
NSN: 5331-01-514-4988
FSC Code: 5331
MPN: S9026HSN030

5331-01-514-4997 (S9026HSN121)

NIIN: 01-514-4997
In stock
NSN: 5331-01-514-4997
FSC Code: 5331
MPN: S9026HSN121

5331-01-564-8845 (S9026H228)

NIIN: 01-564-8845
In stock
NSN: 5331-01-564-8845
FSC Code: 5331
MPN: S9026H228

5331-01-505-9434 (S9026G224)

NIIN: 01-505-9434
In stock
NSN: 5331-01-505-9434
FSC Code: 5331
MPN: S9026G224

5331-01-514-6135 (S9026HSN018)

NIIN: 01-514-6135
In stock
NSN: 5331-01-514-6135
FSC Code: 5331
MPN: S9026HSN018

5331-01-514-6138 (S9026HSN022)

NIIN: 01-514-6138
In stock
NSN: 5331-01-514-6138
FSC Code: 5331
MPN: S9026HSN022

5331-01-514-6139 (S9026HSN025)

NIIN: 01-514-6139
In stock
NSN: 5331-01-514-6139
FSC Code: 5331
MPN: S9026HSN025

5331-01-407-2335 (S9026A227)

NIIN: 01-407-2335
In stock
NSN: 5331-01-407-2335
FSC Code: 5331
MPN: S9026A227

5331-01-407-2339 (S9026A256)

NIIN: 01-407-2339
In stock
NSN: 5331-01-407-2339
FSC Code: 5331
MPN: S9026A256

5331-01-407-5385 (S9026A228)

NIIN: 01-407-5385
In stock
NSN: 5331-01-407-5385
FSC Code: 5331
MPN: S9026A228

5331-01-407-2334 (S9026A011)

NIIN: 01-407-2334
In stock
NSN: 5331-01-407-2334
FSC Code: 5331
MPN: S9026A011

5331-01-564-8846 (S9026A226)

NIIN: 01-564-8846
In stock
NSN: 5331-01-564-8846
FSC Code: 5331
MPN: S9026A226

5331-01-349-4214 (S8990-619)

NIIN: 01-349-4214
In stock
NSN: 5331-01-349-4214
FSC Code: 5331
MPN: S8990619

5331-01-518-9439 (S8990-163)

NIIN: 01-518-9439
In stock
NSN: 5331-01-518-9439
FSC Code: 5331
MPN: S8990163

5331-01-457-5286 (S8990-517)

NIIN: 01-457-5286
In stock
NSN: 5331-01-457-5286
FSC Code: 5331
MPN: S8990517

5331-01-529-1488 (S8990-749)

NIIN: 01-529-1488
In stock
NSN: 5331-01-529-1488
FSC Code: 5331
MPN: S8990749

5331-01-349-4215 (S8990-614)

NIIN: 01-349-4215
In stock
NSN: 5331-01-349-4215
FSC Code: 5331
MPN: S8990614

5331-01-543-1069 (S8990-134)

NIIN: 01-543-1069
In stock
NSN: 5331-01-543-1069
FSC Code: 5331
MPN: S8990134

5331-01-472-1799 (S8995-6)

NIIN: 01-472-1799
In stock
NSN: 5331-01-472-1799
FSC Code: 5331
MPN: S89956

5331-01-495-5421 (S8990-109)

NIIN: 01-495-5421
In stock
NSN: 5331-01-495-5421
FSC Code: 5331
MPN: S8990109

5331-01-349-8919 (S8990-150)

NIIN: 01-349-8919
In stock
NSN: 5331-01-349-8919
FSC Code: 5331
MPN: S8990150

5331-01-349-4219 (S8990-173)

NIIN: 01-349-4219
In stock
NSN: 5331-01-349-4219
FSC Code: 5331
MPN: S8990173

5331-01-349-4218 (S8990-126)

NIIN: 01-349-4218
In stock
NSN: 5331-01-349-4218
FSC Code: 5331
MPN: S8990126

5331-01-349-4216 (S8990-615)

NIIN: 01-349-4216
In stock
NSN: 5331-01-349-4216
FSC Code: 5331
MPN: S8990615

5331-01-349-4217 (S8990-107)

NIIN: 01-349-4217
In stock
NSN: 5331-01-349-4217
FSC Code: 5331
MPN: S8990107

5331-01-358-9544 (S8990-248)

NIIN: 01-358-9544
In stock
NSN: 5331-01-358-9544
FSC Code: 5331
MPN: S8990248

5331-01-479-9959 (S8990-115)

NIIN: 01-479-9959
In stock
NSN: 5331-01-479-9959
FSC Code: 5331
MPN: S8990115

5331-01-522-3798 (S8900-047)

NIIN: 01-522-3798
In stock
NSN: 5331-01-522-3798
FSC Code: 5331
MPN: S8900047

5331-01-520-8476 (S8171-110)

NIIN: 01-520-8476
In stock
NSN: 5331-01-520-8476
FSC Code: 5331
MPN: S8171110

5331-01-547-9673 (S8011451)

NIIN: 01-547-9673
In stock
NSN: 5331-01-547-9673
FSC Code: 5331
MPN: S8011451

5331-01-433-7881 (S8057V117)

NIIN: 01-433-7881
In stock
NSN: 5331-01-433-7881
FSC Code: 5331
MPN: S8057V117

5331-01-467-3073 (S7E183-23)

NIIN: 01-467-3073
In stock
NSN: 5331-01-467-3073
FSC Code: 5331
MPN: S7E18323

5331-01-399-3788 (S589B267AAA)

NIIN: 01-399-3788
In stock
NSN: 5331-01-399-3788
FSC Code: 5331
MPN: S589B267AAA

5331-01-535-5792 (S590)

NIIN: 01-535-5792
In stock
NSN: 5331-01-535-5792
FSC Code: 5331
MPN: S590

5331-01-471-3410 (S55407-1360-65)

NIIN: 01-471-3410
In stock
NSN: 5331-01-471-3410
FSC Code: 5331
MPN: S55407136065

5331-01-509-9586 (S55044-2200A5N)

NIIN: 01-509-9586
In stock
NSN: 5331-01-509-9586
FSC Code: 5331
MPN: S550442200A5N

5331-01-562-1052 (S52280-01)

NIIN: 01-562-1052
In stock
NSN: 5331-01-562-1052
FSC Code: 5331
MPN: S5228001

5331-01-422-6565 (S51-S-010)

NIIN: 01-422-6565
In stock
NSN: 5331-01-422-6565
FSC Code: 5331
MPN: S51S010

5331-01-422-6566 (S51-S-011)

NIIN: 01-422-6566
In stock
NSN: 5331-01-422-6566
FSC Code: 5331
MPN: S51S011

5331-01-422-6562 (S51-S-007)

NIIN: 01-422-6562
In stock
NSN: 5331-01-422-6562
FSC Code: 5331
MPN: S51S007

5331-01-422-6569 (S51-S-118)

NIIN: 01-422-6569
In stock
NSN: 5331-01-422-6569
FSC Code: 5331
MPN: S51S118

5331-01-424-4257 (S51-T-426)

NIIN: 01-424-4257
In stock
NSN: 5331-01-424-4257
FSC Code: 5331
MPN: S51T426

5331-01-422-6567 (S51-S-111)

NIIN: 01-422-6567
In stock
NSN: 5331-01-422-6567
FSC Code: 5331
MPN: S51S111

5331-01-373-5231 (S50-119N)

NIIN: 01-373-5231
In stock
NSN: 5331-01-373-5231
FSC Code: 5331
MPN: S50119N

5331-01-537-3091 (S50-013)

NIIN: 01-537-3091
In stock
NSN: 5331-01-537-3091
FSC Code: 5331
MPN: S50013

5331-01-493-2902 (S4892944-226)

NIIN: 01-493-2902
In stock
NSN: 5331-01-493-2902
FSC Code: 5331
MPN: S4892944226