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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.

5331-01-205-9782 (925062-2)

NIIN: 01-205-9782
In stock
NSN: 5331-01-205-9782
FSC Code: 5331
MPN: 9250622

5331-01-205-9778 (925061-4)

NIIN: 01-205-9778
In stock
NSN: 5331-01-205-9778
FSC Code: 5331
MPN: 9250614

5331-01-205-5639 (925060-6)

NIIN: 01-205-5639
In stock
NSN: 5331-01-205-5639
FSC Code: 5331
MPN: 9250606

5331-01-286-2495 (925050-7)

NIIN: 01-286-2495
In stock
NSN: 5331-01-286-2495
FSC Code: 5331
MPN: 9250507

5331-01-287-0226 (925053-1)

NIIN: 01-287-0226
In stock
NSN: 5331-01-287-0226
FSC Code: 5331
MPN: 9250531

5331-01-275-1862 (9248B)

NIIN: 01-275-1862
In stock
NSN: 5331-01-275-1862
FSC Code: 5331
MPN: 9248B

5331-00-202-1378 (92488-01)

NIIN: 00-202-1378
In stock
NSN: 5331-00-202-1378
FSC Code: 5331
MPN: 9248801

5331-01-273-9929 (924283C1)

NIIN: 01-273-9929
In stock
NSN: 5331-01-273-9929
FSC Code: 5331
MPN: 924283C1

5331-01-277-8801 (9247B)

NIIN: 01-277-8801
In stock
NSN: 5331-01-277-8801
FSC Code: 5331
MPN: 9247B

5331-01-222-7964 (92423-6)

NIIN: 01-222-7964
In stock
NSN: 5331-01-222-7964
FSC Code: 5331
MPN: 924236

5331-00-115-1458 (923922-9)

NIIN: 00-115-1458
In stock
NSN: 5331-00-115-1458
FSC Code: 5331
MPN: 9239229

5331-00-110-5685 (923718-1)

NIIN: 00-110-5685
In stock
NSN: 5331-00-110-5685
FSC Code: 5331
MPN: 9237181

5331-00-111-0733 (923664-7)

NIIN: 00-111-0733
In stock
NSN: 5331-00-111-0733
FSC Code: 5331
MPN: 9236647

5331-00-115-1454 (923663-9)

NIIN: 00-115-1454
In stock
NSN: 5331-00-115-1454
FSC Code: 5331
MPN: 9236639

5331-00-115-1456 (923587-0)

NIIN: 00-115-1456
In stock
NSN: 5331-00-115-1456
FSC Code: 5331
MPN: 9235870

5331-00-115-1457 (923578-9)

NIIN: 00-115-1457
In stock
NSN: 5331-00-115-1457
FSC Code: 5331
MPN: 9235789

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