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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.

5331-00-599-0090 (92330-01)

NIIN: 00-599-0090
In stock
NSN: 5331-00-599-0090
FSC Code: 5331
MPN: 9233001

5331-01-526-5649 (995-6328)

NIIN: 01-526-5649
In stock
NSN: 5331-01-526-5649
FSC Code: 5331
MPN: 9956328

5331-01-524-5133 (982-9814)

NIIN: 01-524-5133
In stock
NSN: 5331-01-524-5133
FSC Code: 5331
MPN: 9829814

5331-01-524-5858 (986-1661)

NIIN: 01-524-5858
In stock
NSN: 5331-01-524-5858
FSC Code: 5331
MPN: 9861661

5331-01-524-6195 (7421806083)

NIIN: 01-524-6195
In stock
NSN: 5331-01-524-6195
FSC Code: 5331
MPN: 7421806083

5331-01-526-5325 (5-256-N552-9)

NIIN: 01-526-5325
In stock
NSN: 5331-01-526-5325
FSC Code: 5331
MPN: 5256N5529

5331-01-524-7480 (5-256-N522-9)

NIIN: 01-524-7480
In stock
NSN: 5331-01-524-7480
FSC Code: 5331
MPN: 5256N5229

5331-01-424-3527 (4KK338)

NIIN: 01-424-3527
In stock
NSN: 5331-01-424-3527
FSC Code: 5331
MPN: 4KK338

5331-01-340-8222 (9800590)

NIIN: 01-340-8222
In stock
NSN: 5331-01-340-8222
FSC Code: 5331
MPN: 9800590

5331-01-439-9205 (4K252)

NIIN: 01-439-9205
In stock
NSN: 5331-01-439-9205
FSC Code: 5331
MPN: 4K252

5331-01-365-9385 (4K1-93)

NIIN: 01-365-9385
In stock
NSN: 5331-01-365-9385
FSC Code: 5331
MPN: 4K193

5331-99-445-5543 (P408M10242/5)

NIIN: 99-445-5543
In stock
NSN: 5331-99-445-5543
FSC Code: 5331
MPN: P408M102425

5331-01-565-3498 (MDFPM-3000-3W)

NIIN: 01-565-3498
In stock
NSN: 5331-01-565-3498
FSC Code: 5331
MPN: MDFPM30003W

5331-01-493-9132 (EAOCM-1214NF-3W)

NIIN: 01-493-9132
In stock
NSN: 5331-01-493-9132
FSC Code: 5331
MPN: EAOCM1214NF3W

5331-01-365-4407 (4K2-5)

NIIN: 01-365-4407
In stock
NSN: 5331-01-365-4407
FSC Code: 5331
MPN: 4K25

5331-01-365-6278 (EAOM-501-NF2-3W)

NIIN: 01-365-6278
In stock
NSN: 5331-01-365-6278
FSC Code: 5331
MPN: EAOM501NF23W

5331-01-528-5613 (M900P-1215FL-2W)

NIIN: 01-528-5613
In stock
NSN: 5331-01-528-5613
FSC Code: 5331
MPN: M900P1215FL2W

5331-01-363-0614 (5331PL0914003)

NIIN: 01-363-0614
In stock
NSN: 5331-01-363-0614
FSC Code: 5331
MPN: 5331PL0914003

5331-01-505-5865 (M900P-1215FL-2W)

NIIN: 01-505-5865
In stock
NSN: 5331-01-505-5865
FSC Code: 5331
MPN: M900P1215FL2W

5331-01-468-6865 (4K1-62)

NIIN: 01-468-6865
In stock
NSN: 5331-01-468-6865
FSC Code: 5331
MPN: 4K162

5331-01-570-3507 (M900P-1215FL-2W)

NIIN: 01-570-3507
In stock
NSN: 5331-01-570-3507
FSC Code: 5331
MPN: M900P1215FL2W

5331-01-425-3041 (MDFPMX-3150-3W)

NIIN: 01-425-3041
In stock
NSN: 5331-01-425-3041
FSC Code: 5331
MPN: MDFPMX31503W

5331-01-363-0615 (5331PL0914067)

NIIN: 01-363-0615
In stock
NSN: 5331-01-363-0615
FSC Code: 5331
MPN: 5331PL0914067

5331-01-472-5252 (EAOCM-814NF2-3W)

NIIN: 01-472-5252
In stock
NSN: 5331-01-472-5252
FSC Code: 5331
MPN: EAOCM814NF23W

5331-01-472-7413 (EAOCM-814NF2-3W)

NIIN: 01-472-7413
In stock
NSN: 5331-01-472-7413
FSC Code: 5331
MPN: EAOCM814NF23W

5331-01-252-5110 (922642C2)

NIIN: 01-252-5110
In stock
NSN: 5331-01-252-5110
FSC Code: 5331
MPN: 922642C2

5331-01-552-8320 (4I-9404)

NIIN: 01-552-8320
In stock
NSN: 5331-01-552-8320
FSC Code: 5331
MPN: 4I9404

5331-01-398-3932 (4HS694)

NIIN: 01-398-3932
In stock
NSN: 5331-01-398-3932
FSC Code: 5331
MPN: 4HS694

5331-01-393-9441 (KIT8.3X2.4MM)

NIIN: 01-393-9441
In stock
NSN: 5331-01-393-9441
FSC Code: 5331
MPN: KIT83X24MM

5331-01-020-4678 (92241-04)

NIIN: 01-020-4678
In stock
NSN: 5331-01-020-4678
FSC Code: 5331
MPN: 9224104

5331-15-147-7099 (4GUA114018)

NIIN: 15-147-7099
In stock
NSN: 5331-15-147-7099
FSC Code: 5331
MPN: 4GUA114018

5331-15-178-5825 (4GUA126718)

NIIN: 15-178-5825
In stock
NSN: 5331-15-178-5825
FSC Code: 5331
MPN: 4GUA126718

5331-15-147-7024 (4GUA117926)

NIIN: 15-147-7024
In stock
NSN: 5331-15-147-7024
FSC Code: 5331
MPN: 4GUA117926

5331-15-178-5826 (4GUA126726)

NIIN: 15-178-5826
In stock
NSN: 5331-15-178-5826
FSC Code: 5331
MPN: 4GUA126726

5331-15-178-5824 (4GUA122018)

NIIN: 15-178-5824
In stock
NSN: 5331-15-178-5824
FSC Code: 5331
MPN: 4GUA122018

5331-15-147-7028 (4GUA115926)

NIIN: 15-147-7028
In stock
NSN: 5331-15-147-7028
FSC Code: 5331
MPN: 4GUA115926

5331-15-147-7023 (4GUA111118)

NIIN: 15-147-7023
In stock
NSN: 5331-15-147-7023
FSC Code: 5331
MPN: 4GUA111118

5331-15-147-7033 (4GUA109318)

NIIN: 15-147-7033
In stock
NSN: 5331-15-147-7033
FSC Code: 5331
MPN: 4GUA109318

5331-15-147-7031 (4GUA109926)

NIIN: 15-147-7031
In stock
NSN: 5331-15-147-7031
FSC Code: 5331
MPN: 4GUA109926

5331-01-522-0142 (4G-4972)

NIIN: 01-522-0142
In stock
NSN: 5331-01-522-0142
FSC Code: 5331
MPN: 4G4972

5331-01-571-5497 (PL4G10615ITEM033)

NIIN: 01-571-5497
In stock
NSN: 5331-01-571-5497
FSC Code: 5331
MPN: PL4G10615ITEM033

5331-01-288-2180 (921-004)

NIIN: 01-288-2180
In stock
NSN: 5331-01-288-2180
FSC Code: 5331
MPN: 921004

5331-00-840-7546 (920B103-1)

NIIN: 00-840-7546
In stock
NSN: 5331-00-840-7546
FSC Code: 5331
MPN: 920B1031

5331-01-277-8800 (9209B)

NIIN: 01-277-8800
In stock
NSN: 5331-01-277-8800
FSC Code: 5331
MPN: 9209B

5331-01-329-1889 (92055-112)

NIIN: 01-329-1889
In stock
NSN: 5331-01-329-1889
FSC Code: 5331
MPN: 92055112

5331-01-329-7605 (92055-1222)

NIIN: 01-329-7605
In stock
NSN: 5331-01-329-7605
FSC Code: 5331
MPN: 920551222

5331-01-275-3182 (9205B)

NIIN: 01-275-3182
In stock
NSN: 5331-01-275-3182
FSC Code: 5331
MPN: 9205B

5331-01-315-1554 (92055-1006)

NIIN: 01-315-1554
In stock
NSN: 5331-01-315-1554
FSC Code: 5331
MPN: 920551006