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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.

5331-00-400-8593 (89097-227)

NIIN: 00-400-8593
In stock
NSN: 5331-00-400-8593
FSC Code: 5331
MPN: 89097227

5331-01-424-6671 (C-8518/3097)

NIIN: 01-424-6671
In stock
NSN: 5331-01-424-6671
FSC Code: 5331
MPN: C85183097

5331-01-398-9513 (4564-216-EU)

NIIN: 01-398-9513
In stock
NSN: 5331-01-398-9513
FSC Code: 5331
MPN: 4564216EU

5331-01-384-9215 (4564-010)

NIIN: 01-384-9215
In stock
NSN: 5331-01-384-9215
FSC Code: 5331
MPN: 4564010

5331-00-163-8541 (89096-238)

NIIN: 00-163-8541
In stock
NSN: 5331-00-163-8541
FSC Code: 5331
MPN: 89096238

5331-00-965-6497 (89096-233)

NIIN: 00-965-6497
In stock
NSN: 5331-00-965-6497
FSC Code: 5331
MPN: 89096233

5331-00-964-5711 (8906-70116)

NIIN: 00-964-5711
In stock
NSN: 5331-00-964-5711
FSC Code: 5331
MPN: 890670116

5331-00-641-5098 (890395-4)

NIIN: 00-641-5098
In stock
NSN: 5331-00-641-5098
FSC Code: 5331
MPN: 8903954

5331-00-641-2884 (890394-4)

NIIN: 00-641-2884
In stock
NSN: 5331-00-641-2884
FSC Code: 5331
MPN: 8903944

5331-01-529-3219 (LL-H58-3694)

NIIN: 01-529-3219
In stock
NSN: 5331-01-529-3219
FSC Code: 5331
MPN: LLH583694

5331-01-350-0454 (45559-0001)

NIIN: 01-350-0454
In stock
NSN: 5331-01-350-0454
FSC Code: 5331
MPN: 455590001

5331-01-324-0440 (89015-41)

NIIN: 01-324-0440
In stock
NSN: 5331-01-324-0440
FSC Code: 5331
MPN: 8901541

5331-01-324-0443 (89015-75)

NIIN: 01-324-0443
In stock
NSN: 5331-01-324-0443
FSC Code: 5331
MPN: 8901575

5331-01-324-0445 (89015-123)

NIIN: 01-324-0445
In stock
NSN: 5331-01-324-0445
FSC Code: 5331
MPN: 89015123

5331-01-324-0444 (89015-94)

NIIN: 01-324-0444
In stock
NSN: 5331-01-324-0444
FSC Code: 5331
MPN: 8901594

5331-01-324-0442 (89015-73)

NIIN: 01-324-0442
In stock
NSN: 5331-01-324-0442
FSC Code: 5331
MPN: 8901573

5331-01-324-9450 (89015-127)

NIIN: 01-324-9450
In stock
NSN: 5331-01-324-9450
FSC Code: 5331
MPN: 89015127

5331-01-323-8863 (89015-52)

NIIN: 01-323-8863
In stock
NSN: 5331-01-323-8863
FSC Code: 5331
MPN: 8901552

5331-01-324-0441 (89015-71)

NIIN: 01-324-0441
In stock
NSN: 5331-01-324-0441
FSC Code: 5331
MPN: 8901571

5331-01-324-0446 (89015-170)

NIIN: 01-324-0446
In stock
NSN: 5331-01-324-0446
FSC Code: 5331
MPN: 89015170

5331-01-323-8864 (89015-134)

NIIN: 01-323-8864
In stock
NSN: 5331-01-323-8864
FSC Code: 5331
MPN: 89015134

5331-00-269-2767 (8900630P33)

NIIN: 00-269-2767
In stock
NSN: 5331-00-269-2767
FSC Code: 5331
MPN: 8900630P33

5331-00-853-3862 (8900630P24)

NIIN: 00-853-3862
In stock
NSN: 5331-00-853-3862
FSC Code: 5331
MPN: 8900630P24

5331-00-582-2027 (8900630P6)

NIIN: 00-582-2027
In stock
NSN: 5331-00-582-2027
FSC Code: 5331
MPN: 8900630P6

5331-00-420-1664 (8900630P056)

NIIN: 00-420-1664
In stock
NSN: 5331-00-420-1664
FSC Code: 5331
MPN: 8900630P056

5331-00-582-2025 (8900630P4)

NIIN: 00-582-2025
In stock
NSN: 5331-00-582-2025
FSC Code: 5331
MPN: 8900630P4

5331-00-136-3471 (8900630P055)

NIIN: 00-136-3471
In stock
NSN: 5331-00-136-3471
FSC Code: 5331
MPN: 8900630P055

5331-01-080-1770 (890-0005)

NIIN: 01-080-1770
In stock
NSN: 5331-01-080-1770
FSC Code: 5331
MPN: 8900005

5331-01-329-1884 (889615C1)

NIIN: 01-329-1884
In stock
NSN: 5331-01-329-1884
FSC Code: 5331
MPN: 889615C1

5331-00-712-1475 (8893082-10)

NIIN: 00-712-1475
In stock
NSN: 5331-00-712-1475
FSC Code: 5331
MPN: 889308210

5331-00-712-1473 (8893082-14)

NIIN: 00-712-1473
In stock
NSN: 5331-00-712-1473
FSC Code: 5331
MPN: 889308214

5331-01-572-3169 (PL008-111FIG2ITEM2)

NIIN: 01-572-3169
In stock
NSN: 5331-01-572-3169
FSC Code: 5331
MPN: PL008111FIG2ITEM2

5331-00-238-7615 (888946C1)

NIIN: 00-238-7615
In stock
NSN: 5331-00-238-7615
FSC Code: 5331
MPN: 888946C1

5331-12-344-7890 (96.9068.0062)

NIIN: 12-344-7890
In stock
NSN: 5331-12-344-7890
FSC Code: 5331
MPN: 9690680062

5331-12-304-3689 (700429057000)

NIIN: 12-304-3689
In stock
NSN: 5331-12-304-3689
FSC Code: 5331
MPN: 700429057000

5331-25-150-2575 (4-5226A)

NIIN: 25-150-2575
In stock
NSN: 5331-25-150-2575
FSC Code: 5331
MPN: 45226A

5331-25-150-2574 (4-5226A)

NIIN: 25-150-2574
In stock
NSN: 5331-25-150-2574
FSC Code: 5331
MPN: 45226A

5331-01-310-9008 (887656C1)

NIIN: 01-310-9008
In stock
NSN: 5331-01-310-9008
FSC Code: 5331
MPN: 887656C1

5331-01-250-6274 (887520R1)

NIIN: 01-250-6274
In stock
NSN: 5331-01-250-6274
FSC Code: 5331
MPN: 887520R1

5331-01-540-4570 (4-51-I-H-H-3-5-O-RING)

NIIN: 01-540-4570
In stock
NSN: 5331-01-540-4570
FSC Code: 5331
MPN: 451IHH35ORING

5331-01-540-4573 (4-51-I-H-H-3-5-O-RING)

NIIN: 01-540-4573
In stock
NSN: 5331-01-540-4573
FSC Code: 5331
MPN: 451IHH35ORING

5331-01-529-3198 (LL-H58-3683)

NIIN: 01-529-3198
In stock
NSN: 5331-01-529-3198
FSC Code: 5331
MPN: LLH583683

5331-01-088-5241 (8859-1114)

NIIN: 01-088-5241
In stock
NSN: 5331-01-088-5241
FSC Code: 5331
MPN: 88591114

5331-01-392-6712 (G2141-012-020)

NIIN: 01-392-6712
In stock
NSN: 5331-01-392-6712
FSC Code: 5331
MPN: G2141012020

5331-01-392-9510 (45122-008)

NIIN: 01-392-9510
In stock
NSN: 5331-01-392-9510
FSC Code: 5331
MPN: 45122008

5331-01-529-3207 (LL-H58-3686)

NIIN: 01-529-3207
In stock
NSN: 5331-01-529-3207
FSC Code: 5331
MPN: LLH583686

5331-01-479-4501 (450A3459)

NIIN: 01-479-4501
In stock
NSN: 5331-01-479-4501
FSC Code: 5331
MPN: 450A3459

5331-01-479-4500 (450A3460)

NIIN: 01-479-4500
In stock
NSN: 5331-01-479-4500
FSC Code: 5331
MPN: 450A3460