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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.

5331-01-310-5187 (244417-2)

NIIN: 01-310-5187
In stock
NSN: 5331-01-310-5187
FSC Code: 5331
MPN: 2444172

5331-00-618-0684 (2-445)

NIIN: 00-618-0684
In stock
NSN: 5331-00-618-0684
FSC Code: 5331
MPN: 2445

5331-01-066-4456 (2-445)

NIIN: 01-066-4456
In stock
NSN: 5331-01-066-4456
FSC Code: 5331
MPN: 2445

5331-01-211-9788 (2-444N304-75)

NIIN: 01-211-9788
In stock
NSN: 5331-01-211-9788
FSC Code: 5331
MPN: 2444N30475

5331-01-263-8133 (2445Z63)

NIIN: 01-263-8133
In stock
NSN: 5331-01-263-8133
FSC Code: 5331
MPN: 2445Z63

5331-00-341-6879 (2-445E540-8)

NIIN: 00-341-6879
In stock
NSN: 5331-00-341-6879
FSC Code: 5331
MPN: 2445E5408

5331-00-044-7072 (2-445N0674-70)

NIIN: 00-044-7072
In stock
NSN: 5331-00-044-7072
FSC Code: 5331
MPN: 2445N067470

5331-00-007-6116 (2-445N674-70)

NIIN: 00-007-6116
In stock
NSN: 5331-00-007-6116
FSC Code: 5331
MPN: 2445N67470

5331-01-005-2308 (2-445V747-75)

NIIN: 01-005-2308
In stock
NSN: 5331-01-005-2308
FSC Code: 5331
MPN: 2445V74775

5331-01-329-1893 (24463R1)

NIIN: 01-329-1893
In stock
NSN: 5331-01-329-1893
FSC Code: 5331
MPN: 24463R1

5331-01-095-3193 (2-445N103-70)

NIIN: 01-095-3193
In stock
NSN: 5331-01-095-3193
FSC Code: 5331
MPN: 2445N10370

5331-01-217-4035 (2-446-N674-70)

NIIN: 01-217-4035
In stock
NSN: 5331-01-217-4035
FSC Code: 5331
MPN: 2446N67470

5331-01-318-3298 (2-446E515-80)

NIIN: 01-318-3298
In stock
NSN: 5331-01-318-3298
FSC Code: 5331
MPN: 2446E51580

5331-01-186-8336 (2-446-N304-75)

NIIN: 01-186-8336
In stock
NSN: 5331-01-186-8336
FSC Code: 5331
MPN: 2446N30475

5331-01-115-4479 (2-447V776-70)

NIIN: 01-115-4479
In stock
NSN: 5331-01-115-4479
FSC Code: 5331
MPN: 2447V77670

5331-00-470-3291 (2-448E515-80)

NIIN: 00-470-3291
In stock
NSN: 5331-00-470-3291
FSC Code: 5331
MPN: 2448E51580

5331-01-065-0729 (2-448N674-70)

NIIN: 01-065-0729
In stock
NSN: 5331-01-065-0729
FSC Code: 5331
MPN: 2448N67470

5331-00-985-0291 (2-449)

NIIN: 00-985-0291
In stock
NSN: 5331-00-985-0291
FSC Code: 5331
MPN: 2449

5331-00-892-4100 (2-448N506-65)

NIIN: 00-892-4100
In stock
NSN: 5331-00-892-4100
FSC Code: 5331
MPN: 2448N50665

5331-00-845-7434 (2-449)

NIIN: 00-845-7434
In stock
NSN: 5331-00-845-7434
FSC Code: 5331
MPN: 2449

5331-00-876-5666 (2-448-N674-70)

NIIN: 00-876-5666
In stock
NSN: 5331-00-876-5666
FSC Code: 5331
MPN: 2448N67470

5331-00-689-6471 (24-49406)

NIIN: 00-689-6471
In stock
NSN: 5331-00-689-6471
FSC Code: 5331
MPN: 2449406

5331-01-326-9282 (2-449E515-8)

NIIN: 01-326-9282
In stock
NSN: 5331-01-326-9282
FSC Code: 5331
MPN: 2449E5158

5331-01-567-5696 (AS568A-916)

NIIN: 01-567-5696
In stock
NSN: 5331-01-567-5696
FSC Code: 5331
MPN: AS568A916

5331-00-420-0622 (2-449N287-7)

NIIN: 00-420-0622
In stock
NSN: 5331-00-420-0622
FSC Code: 5331
MPN: 2449N2877

5331-00-199-1643 (2-449E515-8)

NIIN: 00-199-1643
In stock
NSN: 5331-00-199-1643
FSC Code: 5331
MPN: 2449E5158

5331-00-689-6470 (24-49406)

NIIN: 00-689-6470
In stock
NSN: 5331-00-689-6470
FSC Code: 5331
MPN: 2449406

5331-01-045-9603 (2-450-N674-70)

NIIN: 01-045-9603
In stock
NSN: 5331-01-045-9603
FSC Code: 5331
MPN: 2450N67470

5331-01-190-5810 (2-451)

NIIN: 01-190-5810
In stock
NSN: 5331-01-190-5810
FSC Code: 5331
MPN: 2451

5331-01-215-5394 (2-451)

NIIN: 01-215-5394
In stock
NSN: 5331-01-215-5394
FSC Code: 5331
MPN: 2451

5331-00-807-4355 (2-451)

NIIN: 00-807-4355
In stock
NSN: 5331-00-807-4355
FSC Code: 5331
MPN: 2451

5331-00-752-8813 (2-451B612-7)

NIIN: 00-752-8813
In stock
NSN: 5331-00-752-8813
FSC Code: 5331
MPN: 2451B6127

5331-01-170-6286 (2-452)

NIIN: 01-170-6286
In stock
NSN: 5331-01-170-6286
FSC Code: 5331
MPN: 2452

5331-01-229-0729 (2-452E540-80)

NIIN: 01-229-0729
In stock
NSN: 5331-01-229-0729
FSC Code: 5331
MPN: 2452E54080

5331-01-160-2063 (2-452L1223-60)

NIIN: 01-160-2063
In stock
NSN: 5331-01-160-2063
FSC Code: 5331
MPN: 2452L122360

5331-01-239-8650 (2-452C557-70)

NIIN: 01-239-8650
In stock
NSN: 5331-01-239-8650
FSC Code: 5331
MPN: 2452C55770

5331-01-102-9879 (2-452N525-60)

NIIN: 01-102-9879
In stock
NSN: 5331-01-102-9879
FSC Code: 5331
MPN: 2452N52560

5331-00-893-9220 (2-452N951-75)

NIIN: 00-893-9220
In stock
NSN: 5331-00-893-9220
FSC Code: 5331
MPN: 2452N95175

5331-00-969-6929 (2-453)

NIIN: 00-969-6929
In stock
NSN: 5331-00-969-6929
FSC Code: 5331
MPN: 2453

5331-01-331-0494 (2-452S604-70)

NIIN: 01-331-0494
In stock
NSN: 5331-01-331-0494
FSC Code: 5331
MPN: 2452S60470

5331-01-160-2062 (2-453L1223-60)

NIIN: 01-160-2062
In stock
NSN: 5331-01-160-2062
FSC Code: 5331
MPN: 2453L122360

5331-01-210-8736 (2-454)

NIIN: 01-210-8736
In stock
NSN: 5331-01-210-8736
FSC Code: 5331
MPN: 2454

5331-01-005-2310 (2-453V747-75)

NIIN: 01-005-2310
In stock
NSN: 5331-01-005-2310
FSC Code: 5331
MPN: 2453V74775

5331-01-105-1887 (2-453N525-60)

NIIN: 01-105-1887
In stock
NSN: 5331-01-105-1887
FSC Code: 5331
MPN: 2453N52560

5331-01-240-5924 (245-5183274)

NIIN: 01-240-5924
In stock
NSN: 5331-01-240-5924
FSC Code: 5331
MPN: 2455183274

5331-00-455-7028 (2-455E515-8)

NIIN: 00-455-7028
In stock
NSN: 5331-00-455-7028
FSC Code: 5331
MPN: 2455E5158

5331-00-631-1345 (2-455N304-75)

NIIN: 00-631-1345
In stock
NSN: 5331-00-631-1345
FSC Code: 5331
MPN: 2455N30475

5331-01-320-8637 (2-455N219-70)

NIIN: 01-320-8637
In stock
NSN: 5331-01-320-8637
FSC Code: 5331
MPN: 2455N21970