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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.

5331-01-545-0524 (820-5347922-528)

NIIN: 01-545-0524
In stock
NSN: 5331-01-545-0524
FSC Code: 5331
MPN: 8205347922528

5331-01-518-1253 (820-5348444-4)

NIIN: 01-518-1253
In stock
NSN: 5331-01-518-1253
FSC Code: 5331
MPN: 82053484444

5331-01-545-0521 (820-5347922-523)

NIIN: 01-545-0521
In stock
NSN: 5331-01-545-0521
FSC Code: 5331
MPN: 8205347922523

5331-01-529-3879 (820-5348164PC345)

NIIN: 01-529-3879
In stock
NSN: 5331-01-529-3879
FSC Code: 5331
MPN: 8205348164PC345

5331-01-545-0546 (820-5347922-533)

NIIN: 01-545-0546
In stock
NSN: 5331-01-545-0546
FSC Code: 5331
MPN: 8205347922533

5331-01-545-0547 (820-5347922-535)

NIIN: 01-545-0547
In stock
NSN: 5331-01-545-0547
FSC Code: 5331
MPN: 8205347922535

5331-01-545-0544 (820-5347922-530)

NIIN: 01-545-0544
In stock
NSN: 5331-01-545-0544
FSC Code: 5331
MPN: 8205347922530

5331-01-545-0516 (820-5347922-515)

NIIN: 01-545-0516
In stock
NSN: 5331-01-545-0516
FSC Code: 5331
MPN: 8205347922515

5331-01-545-0523 (820-5347922-525)

NIIN: 01-545-0523
In stock
NSN: 5331-01-545-0523
FSC Code: 5331
MPN: 8205347922525

5331-01-545-0519 (820-5347922-520)

NIIN: 01-545-0519
In stock
NSN: 5331-01-545-0519
FSC Code: 5331
MPN: 8205347922520

5331-01-545-0518 (820-5347922-518)

NIIN: 01-545-0518
In stock
NSN: 5331-01-545-0518
FSC Code: 5331
MPN: 8205347922518

5331-01-545-0492 (820-5347922-503)

NIIN: 01-545-0492
In stock
NSN: 5331-01-545-0492
FSC Code: 5331
MPN: 8205347922503

5331-01-545-0502 (820-5347922-510)

NIIN: 01-545-0502
In stock
NSN: 5331-01-545-0502
FSC Code: 5331
MPN: 8205347922510

5331-01-545-0488 (820-5347922-498)

NIIN: 01-545-0488
In stock
NSN: 5331-01-545-0488
FSC Code: 5331
MPN: 8205347922498

5331-01-545-0513 (820-5347922-513)

NIIN: 01-545-0513
In stock
NSN: 5331-01-545-0513
FSC Code: 5331
MPN: 8205347922513

5331-01-545-0471 (820-5347922-495)

NIIN: 01-545-0471
In stock
NSN: 5331-01-545-0471
FSC Code: 5331
MPN: 8205347922495

5331-01-545-0495 (820-5347922-505)

NIIN: 01-545-0495
In stock
NSN: 5331-01-545-0495
FSC Code: 5331
MPN: 8205347922505

5331-01-545-0498 (820-5347922-508)

NIIN: 01-545-0498
In stock
NSN: 5331-01-545-0498
FSC Code: 5331
MPN: 8205347922508

5331-01-545-0489 (820-5347922-500)

NIIN: 01-545-0489
In stock
NSN: 5331-01-545-0489
FSC Code: 5331
MPN: 8205347922500

5331-01-517-3840 (820-5295154PCA63-6)

NIIN: 01-517-3840
In stock
NSN: 5331-01-517-3840
FSC Code: 5331
MPN: 8205295154PCA636

5331-01-514-4024 (820-5295154PCA61-10)

NIIN: 01-514-4024
In stock
NSN: 5331-01-514-4024
FSC Code: 5331
MPN: 8205295154PCA6110

5331-01-568-3376 (AS28775-144(MOD))

NIIN: 01-568-3376
In stock
NSN: 5331-01-568-3376
FSC Code: 5331
MPN: AS28775144MOD

5331-01-487-2238 (820-4551687-3)

NIIN: 01-487-2238
In stock
NSN: 5331-01-487-2238
FSC Code: 5331
MPN: 82045516873

5331-00-275-3482 (KP120R)

NIIN: 00-275-3482
In stock
NSN: 5331-00-275-3482
FSC Code: 5331
MPN: KP120R

5331-01-264-6394 (KP0-0108)

NIIN: 01-264-6394
In stock
NSN: 5331-01-264-6394
FSC Code: 5331
MPN: KP00108

5331-01-519-4488 (820-4446288-2)

NIIN: 01-519-4488
In stock
NSN: 5331-01-519-4488
FSC Code: 5331
MPN: 82044462882

5331-01-464-9410 (820-4383832-36)

NIIN: 01-464-9410
In stock
NSN: 5331-01-464-9410
FSC Code: 5331
MPN: 820438383236

5331-01-328-4141 (KO7011)

NIIN: 01-328-4141
In stock
NSN: 5331-01-328-4141
FSC Code: 5331
MPN: KO7011

5331-01-530-9837 (820310-DD0)

NIIN: 01-530-9837
In stock
NSN: 5331-01-530-9837
FSC Code: 5331
MPN: 820310DD0

5331-01-486-9610 (8203-19)

NIIN: 01-486-9610
In stock
NSN: 5331-01-486-9610
FSC Code: 5331
MPN: 820319

5331-01-465-3947 (820-2179130-88)

NIIN: 01-465-3947
In stock
NSN: 5331-01-465-3947
FSC Code: 5331
MPN: 820217913088

5331-01-465-7595 (820-2177899-9)

NIIN: 01-465-7595
In stock
NSN: 5331-01-465-7595
FSC Code: 5331
MPN: 82021778999

5331-01-442-7220 (8202-10)

NIIN: 01-442-7220
In stock
NSN: 5331-01-442-7220
FSC Code: 5331
MPN: 820210

5331-01-442-7218 (8201-14)

NIIN: 01-442-7218
In stock
NSN: 5331-01-442-7218
FSC Code: 5331
MPN: 820114

5331-01-551-3713 (82005513-036)

NIIN: 01-551-3713
In stock
NSN: 5331-01-551-3713
FSC Code: 5331
MPN: 82005513036

5331-01-417-3950 (82005585-040)

NIIN: 01-417-3950
In stock
NSN: 5331-01-417-3950
FSC Code: 5331
MPN: 82005585040

5331-01-551-3712 (82005504-036)

NIIN: 01-551-3712
In stock
NSN: 5331-01-551-3712
FSC Code: 5331
MPN: 82005504036

5331-01-417-3954 (82005031-040)

NIIN: 01-417-3954
In stock
NSN: 5331-01-417-3954
FSC Code: 5331
MPN: 82005031040

5331-01-417-3951 (82005527-040)

NIIN: 01-417-3951
In stock
NSN: 5331-01-417-3951
FSC Code: 5331
MPN: 82005527040

5331-01-424-7634 (8200-41)

NIIN: 01-424-7634
In stock
NSN: 5331-01-424-7634
FSC Code: 5331
MPN: 820041

5331-01-480-2218 (8200-17)

NIIN: 01-480-2218
In stock
NSN: 5331-01-480-2218
FSC Code: 5331
MPN: 820017

5331-01-456-3721 (8200-39)

NIIN: 01-456-3721
In stock
NSN: 5331-01-456-3721
FSC Code: 5331
MPN: 820039

5331-01-506-2384 (8200-16)

NIIN: 01-506-2384
In stock
NSN: 5331-01-506-2384
FSC Code: 5331
MPN: 820016

5331-00-193-0910 (KK71GZ018LA)

NIIN: 00-193-0910
In stock
NSN: 5331-00-193-0910
FSC Code: 5331
MPN: KK71GZ018LA

5331-00-463-3297 (KK71GZ058)

NIIN: 00-463-3297
In stock
NSN: 5331-00-463-3297
FSC Code: 5331
MPN: KK71GZ058

5331-00-463-3338 (KK71GZ030)

NIIN: 00-463-3338
In stock
NSN: 5331-00-463-3338
FSC Code: 5331
MPN: KK71GZ030

5331-00-752-8604 (KK71JV006)

NIIN: 00-752-8604
In stock
NSN: 5331-00-752-8604
FSC Code: 5331
MPN: KK71JV006

5331-00-916-9319 (KK71GZ045)

NIIN: 00-916-9319
In stock
NSN: 5331-00-916-9319
FSC Code: 5331
MPN: KK71GZ045