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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.

5331-01-604-2664 (560-008-360)

NIIN: 01-604-2664
In stock
NSN: 5331-01-604-2664
FSC Code: 5331
MPN: 560008360

5331-01-604-8836 (3102500)

NIIN: 01-604-8836
In stock
NSN: 5331-01-604-8836
FSC Code: 5331
MPN: 3102500

5331-01-604-8349 (123-013-5-90)

NIIN: 01-604-8349
In stock
NSN: 5331-01-604-8349
FSC Code: 5331
MPN: 123013590

5331-01-604-6783 (8OR150X3.0)

NIIN: 01-604-6783
In stock
NSN: 5331-01-604-6783
FSC Code: 5331
MPN: 8OR150X30

5331-01-604-1860 (91353-ZW1-703)

NIIN: 01-604-1860
In stock
NSN: 5331-01-604-1860
FSC Code: 5331
MPN: 91353ZW1703

5331-01-604-1141 (6P2-85075-00-00)

NIIN: 01-604-1141
In stock
NSN: 5331-01-604-1141
FSC Code: 5331
MPN: 6P2850750000

5331-01-605-0338 (064019-045)

NIIN: 01-605-0338
In stock
NSN: 5331-01-605-0338
FSC Code: 5331
MPN: 064019045

5331-01-605-0344 (064019-100)

NIIN: 01-605-0344
In stock
NSN: 5331-01-605-0344
FSC Code: 5331
MPN: 064019100

5331-01-604-9564 (000012)

NIIN: 01-604-9564
In stock
NSN: 5331-01-604-9564
FSC Code: 5331
MPN: 000012

5331-01-604-7310 (LF-6712)

NIIN: 01-604-7310
In stock
NSN: 5331-01-604-7310
FSC Code: 5331
MPN: LF6712

5331-01-604-7328 (NO756-75 2-210)

NIIN: 01-604-7328
In stock
NSN: 5331-01-604-7328
FSC Code: 5331
MPN: NO756752210

5331-01-604-6690 (895056)

NIIN: 01-604-6690
In stock
NSN: 5331-01-604-6690
FSC Code: 5331
MPN: 895056

5331-01-604-4415 (028-11145C003)

NIIN: 01-604-4415
In stock
NSN: 5331-01-604-4415
FSC Code: 5331
MPN: 02811145C003

5331-01-604-2666 (560-005-360)

NIIN: 01-604-2666
In stock
NSN: 5331-01-604-2666
FSC Code: 5331
MPN: 560005360

5331-01-604-2689 (93210-06519-00)

NIIN: 01-604-2689
In stock
NSN: 5331-01-604-2689
FSC Code: 5331
MPN: 932100651900

5331-01-604-2658 (560-010-360)

NIIN: 01-604-2658
In stock
NSN: 5331-01-604-2658
FSC Code: 5331
MPN: 560010360

5331-01-603-9283 (J1438P146)

NIIN: 01-603-9283
In stock
NSN: 5331-01-603-9283
FSC Code: 5331
MPN: J1438P146

5331-01-604-9035 (113-5304)

NIIN: 01-604-9035
In stock
NSN: 5331-01-604-9035
FSC Code: 5331
MPN: 1135304

5331-01-604-8353 (123-908-5-90)

NIIN: 01-604-8353
In stock
NSN: 5331-01-604-8353
FSC Code: 5331
MPN: 123908590

5331-01-604-6784 (8OR.10X3.0)

NIIN: 01-604-6784
In stock
NSN: 5331-01-604-6784
FSC Code: 5331
MPN: 8OR10X30

5331-01-604-4530 (884423)

NIIN: 01-604-4530
In stock
NSN: 5331-01-604-4530
FSC Code: 5331
MPN: 884423

5331-01-604-4469 (897135)

NIIN: 01-604-4469
In stock
NSN: 5331-01-604-4469
FSC Code: 5331
MPN: 897135

5331-01-604-4037 (25-845746)

NIIN: 01-604-4037
In stock
NSN: 5331-01-604-4037
FSC Code: 5331
MPN: 25845746

5331-01-604-1204 (6H1-43861-10-00)

NIIN: 01-604-1204
In stock
NSN: 5331-01-604-1204
FSC Code: 5331
MPN: 6H1438611000

5331-01-603-8543 (3030235)

NIIN: 01-603-8543
In stock
NSN: 5331-01-603-8543
FSC Code: 5331
MPN: 3030235

5331-01-604-8835 (3102646)

NIIN: 01-604-8835
In stock
NSN: 5331-01-604-8835
FSC Code: 5331
MPN: 3102646

5331-01-604-8715 (828/10310)

NIIN: 01-604-8715
In stock
NSN: 5331-01-604-8715
FSC Code: 5331
MPN: 82810310

5331-01-604-8550 (PD-99079-8)

NIIN: 01-604-8550
In stock
NSN: 5331-01-604-8550
FSC Code: 5331
MPN: PD990798

5331-01-604-8348 (XM123-022-5)

NIIN: 01-604-8348
In stock
NSN: 5331-01-604-8348
FSC Code: 5331
MPN: XM1230225

5331-01-604-6385 (880596517)

NIIN: 01-604-6385
In stock
NSN: 5331-01-604-6385
FSC Code: 5331
MPN: 880596517

5331-01-604-5935 (892077)

NIIN: 01-604-5935
In stock
NSN: 5331-01-604-5935
FSC Code: 5331
MPN: 892077

5331-01-604-5715 (857093)

NIIN: 01-604-5715
In stock
NSN: 5331-01-604-5715
FSC Code: 5331
MPN: 857093

5331-01-604-4612 (38780)

NIIN: 01-604-4612
In stock
NSN: 5331-01-604-4612
FSC Code: 5331
MPN: 38780

5331-01-604-4531 (884409)

NIIN: 01-604-4531
In stock
NSN: 5331-01-604-4531
FSC Code: 5331
MPN: 884409

5331-01-604-4075 (58030)

NIIN: 01-604-4075
In stock
NSN: 5331-01-604-4075
FSC Code: 5331
MPN: 58030

5331-01-604-3937 (D50-0020 ITEM 28)

NIIN: 01-604-3937
In stock
NSN: 5331-01-604-3937
FSC Code: 5331
MPN: D500020ITEM28

5331-01-604-1974 (HLM-099)

NIIN: 01-604-1974
In stock
NSN: 5331-01-604-1974
FSC Code: 5331
MPN: HLM099

5331-01-604-1445 (1232MS)

NIIN: 01-604-1445
In stock
NSN: 5331-01-604-1445
FSC Code: 5331
MPN: 1232MS

5331-01-603-9339 (2-113S383-70)

NIIN: 01-603-9339
In stock
NSN: 5331-01-603-9339
FSC Code: 5331
MPN: 2113S38370

5331-01-603-8391 (6P2-13769-00-00)

NIIN: 01-603-8391
In stock
NSN: 5331-01-603-8391
FSC Code: 5331
MPN: 6P2137690000

5331-01-604-4078 (857096)

NIIN: 01-604-4078
In stock
NSN: 5331-01-604-4078
FSC Code: 5331
MPN: 857096

5331-01-604-2687 (91302-ZV5-821)

NIIN: 01-604-2687
In stock
NSN: 5331-01-604-2687
FSC Code: 5331
MPN: 91302ZV5821

5331-01-604-1397 (6H1-43861-00-00)

NIIN: 01-604-1397
In stock
NSN: 5331-01-604-1397
FSC Code: 5331
MPN: 6H1438610000

5331-01-603-8702 (215X1107)

NIIN: 01-603-8702
In stock
NSN: 5331-01-603-8702
FSC Code: 5331
MPN: 215X1107

5331-01-603-8371 (61A-43864-00-00)

NIIN: 01-603-8371
In stock
NSN: 5331-01-603-8371
FSC Code: 5331
MPN: 61A438640000

5331-01-604-6785 (8OR.28X3.0)

NIIN: 01-604-6785
In stock
NSN: 5331-01-604-6785
FSC Code: 5331
MPN: 8OR28X30

5331-01-604-6705 (00-971886039-681)

NIIN: 01-604-6705
In stock
NSN: 5331-01-604-6705
FSC Code: 5331
MPN: 00971886039681

5331-01-604-5848 (851889)

NIIN: 01-604-5848
In stock
NSN: 5331-01-604-5848
FSC Code: 5331
MPN: 851889