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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.

5331-01-589-2759 (1840697C2)

NIIN: 01-589-2759
In stock
NSN: 5331-01-589-2759
FSC Code: 5331
MPN: 1840697C2

5331-01-589-2676 (1831212C1)

NIIN: 01-589-2676
In stock
NSN: 5331-01-589-2676
FSC Code: 5331
MPN: 1831212C1

5331-01-589-1297 (0410-15319-0001)

NIIN: 01-589-1297
In stock
NSN: 5331-01-589-1297
FSC Code: 5331
MPN: 0410153190001

5331-01-588-9421 (01050108)

NIIN: 01-588-9421
In stock
NSN: 5331-01-588-9421
FSC Code: 5331
MPN: 01050108

5331-01-589-7918 (3-912-N0602-70)

NIIN: 01-589-7918
In stock
NSN: 5331-01-589-7918
FSC Code: 5331
MPN: 3912N060270

5331-01-589-7567 (M25988/1-380)

NIIN: 01-589-7567
In stock
NSN: 5331-01-589-7567
FSC Code: 5331
MPN: M259881380

5331-01-589-4102 (EBV-F3-60-0340-13)

NIIN: 01-589-4102
In stock
NSN: 5331-01-589-4102
FSC Code: 5331
MPN: EBVF360034013

5331-01-589-3497 (3660865C1)

NIIN: 01-589-3497
In stock
NSN: 5331-01-589-3497
FSC Code: 5331
MPN: 3660865C1

5331-01-589-2705 (1854367C1)

NIIN: 01-589-2705
In stock
NSN: 5331-01-589-2705
FSC Code: 5331
MPN: 1854367C1

5331-01-589-7366 (514503)

NIIN: 01-589-7366
In stock
NSN: 5331-01-589-7366
FSC Code: 5331
MPN: 514503

5331-01-589-7235 (NVM-400)

NIIN: 01-589-7235
In stock
NSN: 5331-01-589-7235
FSC Code: 5331
MPN: NVM400

5331-01-589-4414 (1836078C1)

NIIN: 01-589-4414
In stock
NSN: 5331-01-589-4414
FSC Code: 5331
MPN: 1836078C1

5331-01-589-3993 (1000759)

NIIN: 01-589-3993
In stock
NSN: 5331-01-589-3993
FSC Code: 5331
MPN: 1000759

5331-01-589-3498 (3661318C1)

NIIN: 01-589-3498
In stock
NSN: 5331-01-589-3498
FSC Code: 5331
MPN: 3661318C1

5331-01-589-3028 (3707439C1)

NIIN: 01-589-3028
In stock
NSN: 5331-01-589-3028
FSC Code: 5331
MPN: 3707439C1

5331-01-589-2968 (1834256C1)

NIIN: 01-589-2968
In stock
NSN: 5331-01-589-2968
FSC Code: 5331
MPN: 1834256C1

5331-01-589-2743 (1840824C1)

NIIN: 01-589-2743
In stock
NSN: 5331-01-589-2743
FSC Code: 5331
MPN: 1840824C1

5331-01-589-1857 (302-1091)

NIIN: 01-589-1857
In stock
NSN: 5331-01-589-1857
FSC Code: 5331
MPN: 3021091

5331-01-554-3236 (L1120 2-239)

NIIN: 01-554-3236
In stock
NSN: 5331-01-554-3236
FSC Code: 5331
MPN: L11202239

5331-01-559-1737 (334-NES-6A)

NIIN: 01-559-1737
In stock
NSN: 5331-01-559-1737
FSC Code: 5331
MPN: 334NES6A

5331-01-554-3234 (L1120 2-116)

NIIN: 01-554-3234
In stock
NSN: 5331-01-554-3234
FSC Code: 5331
MPN: L11202116

5331-01-554-3233 (L1120 2-017)

NIIN: 01-554-3233
In stock
NSN: 5331-01-554-3233
FSC Code: 5331
MPN: L11202017

5331-01-559-1743 (10101R73)

NIIN: 01-559-1743
In stock
NSN: 5331-01-559-1743
FSC Code: 5331
MPN: 10101R73

5331-01-559-1770 (791-NES-136A-90)

NIIN: 01-559-1770
In stock
NSN: 5331-01-559-1770
FSC Code: 5331
MPN: 791NES136A90

5331-01-559-1804 (791-NES-012A-90)

NIIN: 01-559-1804
In stock
NSN: 5331-01-559-1804
FSC Code: 5331
MPN: 791NES012A90

5331-01-521-8434 (5-381 V747-75)

NIIN: 01-521-8434
In stock
NSN: 5331-01-521-8434
FSC Code: 5331
MPN: 5381V74775

5331-01-559-1742 (791-NES-018A-90)

NIIN: 01-559-1742
In stock
NSN: 5331-01-559-1742
FSC Code: 5331
MPN: 791NES018A90

5331-01-491-4479 (2-020 N0951-75)

NIIN: 01-491-4479
In stock
NSN: 5331-01-491-4479
FSC Code: 5331
MPN: 2020N095175

5331-01-513-7665 (2-149E515-80)

NIIN: 01-513-7665
In stock
NSN: 5331-01-513-7665
FSC Code: 5331
MPN: 2149E51580

5331-01-469-8237 (DJP 112)

NIIN: 01-469-8237
In stock
NSN: 5331-01-469-8237
FSC Code: 5331
MPN: DJP112

5331-01-469-8235 (5P 107)

NIIN: 01-469-8235
In stock
NSN: 5331-01-469-8235
FSC Code: 5331
MPN: 5P107

5331-01-491-4480 (2-023 N0951-75)

NIIN: 01-491-4480
In stock
NSN: 5331-01-491-4480
FSC Code: 5331
MPN: 2023N095175

5331-01-469-8238 (10E 46)

NIIN: 01-469-8238
In stock
NSN: 5331-01-469-8238
FSC Code: 5331
MPN: 10E46

5331-01-502-9302 (N1090 2-216)

NIIN: 01-502-9302
In stock
NSN: 5331-01-502-9302
FSC Code: 5331
MPN: N10902216

5331-01-469-8239 (APG 108)

NIIN: 01-469-8239
In stock
NSN: 5331-01-469-8239
FSC Code: 5331
MPN: APG108

5331-01-469-8244 (CU 351)

NIIN: 01-469-8244
In stock
NSN: 5331-01-469-8244
FSC Code: 5331
MPN: CU351

5331-01-469-8233 (DJP 58)

NIIN: 01-469-8233
In stock
NSN: 5331-01-469-8233
FSC Code: 5331
MPN: DJP58

5331-01-469-8242 (7M 51)

NIIN: 01-469-8242
In stock
NSN: 5331-01-469-8242
FSC Code: 5331
MPN: 7M51

5331-01-469-8234 (DJP 96)

NIIN: 01-469-8234
In stock
NSN: 5331-01-469-8234
FSC Code: 5331
MPN: DJP96

5331-01-469-8240 (2M 199)

NIIN: 01-469-8240
In stock
NSN: 5331-01-469-8240
FSC Code: 5331
MPN: 2M199

5331-01-424-0953 (2743273-1)

NIIN: 01-424-0953
In stock
NSN: 5331-01-424-0953
FSC Code: 5331
MPN: 27432731

5331-01-452-6563 (SMP 37/OR)

NIIN: 01-452-6563
In stock
NSN: 5331-01-452-6563
FSC Code: 5331
MPN: SMP37OR

5331-01-438-9882 (Q4020)

NIIN: 01-438-9882
In stock
NSN: 5331-01-438-9882
FSC Code: 5331
MPN: Q4020

5331-01-411-6372 (0-3-2-28)

NIIN: 01-411-6372
In stock
NSN: 5331-01-411-6372
FSC Code: 5331
MPN: 03228

5331-01-399-4061 (952240-0041)

NIIN: 01-399-4061
In stock
NSN: 5331-01-399-4061
FSC Code: 5331
MPN: 9522400041

5331-01-425-4338 (39131-11)

NIIN: 01-425-4338
In stock
NSN: 5331-01-425-4338
FSC Code: 5331
MPN: 3913111

5331-01-420-8610 (EA00686)

NIIN: 01-420-8610
In stock
NSN: 5331-01-420-8610
FSC Code: 5331
MPN: EA00686

5331-01-417-1475 (M25988/2-239)

NIIN: 01-417-1475
In stock
NSN: 5331-01-417-1475
FSC Code: 5331
MPN: M259882239