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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.

5331-01-584-9088 (C3728-19)

NIIN: 01-584-9088
In stock
NSN: 5331-01-584-9088
FSC Code: 5331
MPN: C372819

5331-01-584-8547 (198518)

NIIN: 01-584-8547
In stock
NSN: 5331-01-584-8547
FSC Code: 5331
MPN: 198518

5331-01-584-6015 (96515K44)

NIIN: 01-584-6015
In stock
NSN: 5331-01-584-6015
FSC Code: 5331
MPN: 96515K44

5331-01-584-3401 (4170585)

NIIN: 01-584-3401
In stock
NSN: 5331-01-584-3401
FSC Code: 5331
MPN: 4170585

5331-01-585-2533 (0R8X1B70)

NIIN: 01-585-2533
In stock
NSN: 5331-01-585-2533
FSC Code: 5331
MPN: 0R8X1B70

5331-01-584-5090 (E3-1250-155)

NIIN: 01-584-5090
In stock
NSN: 5331-01-584-5090
FSC Code: 5331
MPN: E31250155

5331-01-584-4613 (2-035B0612-70)

NIIN: 01-584-4613
In stock
NSN: 5331-01-584-4613
FSC Code: 5331
MPN: 2035B061270

5331-01-585-1520 (15881W)

NIIN: 01-585-1520
In stock
NSN: 5331-01-585-1520
FSC Code: 5331
MPN: 15881W

5331-01-585-1168 (250848)

NIIN: 01-585-1168
In stock
NSN: 5331-01-585-1168
FSC Code: 5331
MPN: 250848

5331-01-585-0973 (4035033)

NIIN: 01-585-0973
In stock
NSN: 5331-01-585-0973
FSC Code: 5331
MPN: 4035033

5331-01-584-5316 (179-2960)

NIIN: 01-584-5316
In stock
NSN: 5331-01-584-5316
FSC Code: 5331
MPN: 1792960

5331-01-584-4571 (2-050B0612-70)

NIIN: 01-584-4571
In stock
NSN: 5331-01-584-4571
FSC Code: 5331
MPN: 2050B061270

5331-01-584-2793 (9013-3-0602)

NIIN: 01-584-2793
In stock
NSN: 5331-01-584-2793
FSC Code: 5331
MPN: 901330602

5331-01-585-2830 (NVM-184)

NIIN: 01-585-2830
In stock
NSN: 5331-01-585-2830
FSC Code: 5331
MPN: NVM184

5331-01-585-0182 (07524)

NIIN: 01-585-0182
In stock
NSN: 5331-01-585-0182
FSC Code: 5331
MPN: 07524

5331-01-584-9954 (MS25988/1-010)

NIIN: 01-584-9954
In stock
NSN: 5331-01-584-9954
FSC Code: 5331
MPN: MS259881010

5331-01-584-7092 (3-908C0557-70)

NIIN: 01-584-7092
In stock
NSN: 5331-01-584-7092
FSC Code: 5331
MPN: 3908C055770

5331-01-584-9513 (05-20-01)

NIIN: 01-584-9513
In stock
NSN: 5331-01-584-9513
FSC Code: 5331
MPN: 052001

5331-01-584-9115 (500001044E)

NIIN: 01-584-9115
In stock
NSN: 5331-01-584-9115
FSC Code: 5331
MPN: 500001044E

5331-01-584-6189 (30-0166)

NIIN: 01-584-6189
In stock
NSN: 5331-01-584-6189
FSC Code: 5331
MPN: 300166

5331-01-584-3414 (4201993)

NIIN: 01-584-3414
In stock
NSN: 5331-01-584-3414
FSC Code: 5331
MPN: 4201993

5331-01-585-1194 (182752W)

NIIN: 01-585-1194
In stock
NSN: 5331-01-585-1194
FSC Code: 5331
MPN: 182752W

5331-01-584-9951 (M25988/1-026)

NIIN: 01-584-9951
In stock
NSN: 5331-01-584-9951
FSC Code: 5331
MPN: M259881026

5331-01-584-7605 (HC-2000-232)

NIIN: 01-584-7605
In stock
NSN: 5331-01-584-7605
FSC Code: 5331
MPN: HC2000232

5331-01-584-2438 (123-906-5 OXYGEN CLEANCP)

NIIN: 01-584-2438
In stock
NSN: 5331-01-584-2438
FSC Code: 5331
MPN: 1239065OXYGENCLEANCP

5331-01-584-2064 (4S00729)

NIIN: 01-584-2064
In stock
NSN: 5331-01-584-2064
FSC Code: 5331
MPN: 4S00729

5331-01-584-2063 (276-5603)

NIIN: 01-584-2063
In stock
NSN: 5331-01-584-2063
FSC Code: 5331
MPN: 2765603

5331-01-584-9891 (HC-2000-224)

NIIN: 01-584-9891
In stock
NSN: 5331-01-584-9891
FSC Code: 5331
MPN: HC2000224

5331-01-584-9603 (23046848)

NIIN: 01-584-9603
In stock
NSN: 5331-01-584-9603
FSC Code: 5331
MPN: 23046848

5331-01-584-7660 (HC-2000-218)

NIIN: 01-584-7660
In stock
NSN: 5331-01-584-7660
FSC Code: 5331
MPN: HC2000218

5331-01-584-3257 (4396774)

NIIN: 01-584-3257
In stock
NSN: 5331-01-584-3257
FSC Code: 5331
MPN: 4396774

5331-01-584-6222 (7500454)

NIIN: 01-584-6222
In stock
NSN: 5331-01-584-6222
FSC Code: 5331
MPN: 7500454

5331-01-584-3689 (9013-3-0302)

NIIN: 01-584-3689
In stock
NSN: 5331-01-584-3689
FSC Code: 5331
MPN: 901330302

5331-01-584-2430 (123-904-5 OXYGEN CLEANCP)

NIIN: 01-584-2430
In stock
NSN: 5331-01-584-2430
FSC Code: 5331
MPN: 1239045OXYGENCLEANCP

5331-01-584-7619 (9111-161)

NIIN: 01-584-7619
In stock
NSN: 5331-01-584-7619
FSC Code: 5331
MPN: 9111161

5331-01-584-7608 (HC-2000-228)

NIIN: 01-584-7608
In stock
NSN: 5331-01-584-7608
FSC Code: 5331
MPN: HC2000228

5331-01-584-5771 (325D813-11)

NIIN: 01-584-5771
In stock
NSN: 5331-01-584-5771
FSC Code: 5331
MPN: 325D81311

5331-01-584-1080 (0224422)

NIIN: 01-584-1080
In stock
NSN: 5331-01-584-1080
FSC Code: 5331
MPN: 0224422

5331-01-584-1509 (0974906)

NIIN: 01-584-1509
In stock
NSN: 5331-01-584-1509
FSC Code: 5331
MPN: 0974906

5331-01-583-8234 (MVG12-1048)

NIIN: 01-583-8234
In stock
NSN: 5331-01-583-8234
FSC Code: 5331
MPN: MVG121048

5331-01-583-5688 (4210660)

NIIN: 01-583-5688
In stock
NSN: 5331-01-583-5688
FSC Code: 5331
MPN: 4210660

5331-01-584-2406 (123-916-5 OXYGEN CLEAN CP)

NIIN: 01-584-2406
In stock
NSN: 5331-01-584-2406
FSC Code: 5331
MPN: 1239165OXYGENCLEANCP

5331-01-583-9907 (301486(SPCLN))

NIIN: 01-583-9907
In stock
NSN: 5331-01-583-9907
FSC Code: 5331
MPN: 301486SPCLN

5331-01-583-6676 (B-117LS008)

NIIN: 01-583-6676
In stock
NSN: 5331-01-583-6676
FSC Code: 5331
MPN: B117LS008

5331-01-583-5213 (4614703)

NIIN: 01-583-5213
In stock
NSN: 5331-01-583-5213
FSC Code: 5331
MPN: 4614703

5331-01-583-4872 (4S00734)

NIIN: 01-583-4872
In stock
NSN: 5331-01-583-4872
FSC Code: 5331
MPN: 4S00734

5331-01-584-2436 (B9810 REV D ITEM 1 CP)

NIIN: 01-584-2436
In stock
NSN: 5331-01-584-2436
FSC Code: 5331
MPN: B9810REVDITEM1CP

5331-01-583-6547 (101370)

NIIN: 01-583-6547
In stock
NSN: 5331-01-583-6547
FSC Code: 5331
MPN: 101370