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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.

5331-01-612-7952 (90301-99032)

NIIN: 01-612-7952
In stock
NSN: 5331-01-612-7952
FSC Code: 5331
MPN: 9030199032

5331-01-612-7154 (P416-04-034VIT)

NIIN: 01-612-7154
In stock
NSN: 5331-01-612-7154
FSC Code: 5331
MPN: P41604034VIT

5331-01-612-6847 (8223704-1)

NIIN: 01-612-6847
In stock
NSN: 5331-01-612-6847
FSC Code: 5331
MPN: 82237041

5331-01-613-6011 (845-7504731-99A-A)

NIIN: 01-613-6011
In stock
NSN: 5331-01-613-6011
FSC Code: 5331
MPN: 845750473199AA

5331-01-612-9669 (124845)

NIIN: 01-612-9669
In stock
NSN: 5331-01-612-9669
FSC Code: 5331
MPN: 124845

5331-01-612-9021 (AS3581-262)

NIIN: 01-612-9021
In stock
NSN: 5331-01-612-9021
FSC Code: 5331
MPN: AS3581262

5331-01-612-7785 (342)

NIIN: 01-612-7785
In stock
NSN: 5331-01-612-7785
FSC Code: 5331
MPN: 342

5331-01-612-6552 (ATV-618-TR PG 48 KEY 13)

NIIN: 01-612-6552
In stock
NSN: 5331-01-612-6552
FSC Code: 5331
MPN: ATV618TRPG48KEY13

5331-01-613-5310 (OOR07S)

NIIN: 01-613-5310
In stock
NSN: 5331-01-613-5310
FSC Code: 5331
MPN: OOR07S

5331-01-613-1747 (MS38774-110)

NIIN: 01-613-1747
In stock
NSN: 5331-01-613-1747
FSC Code: 5331
MPN: MS38774110

5331-01-613-1154 (66 153 01-S)

NIIN: 01-613-1154
In stock
NSN: 5331-01-613-1154
FSC Code: 5331
MPN: 6615301S

5331-01-613-0206 (229110)

NIIN: 01-613-0206
In stock
NSN: 5331-01-613-0206
FSC Code: 5331
MPN: 229110

5331-01-612-9752 (T35580)

NIIN: 01-612-9752
In stock
NSN: 5331-01-612-9752
FSC Code: 5331
MPN: T35580

5331-01-612-7302 (294-1842)

NIIN: 01-612-7302
In stock
NSN: 5331-01-612-7302
FSC Code: 5331
MPN: 2941842

5331-01-613-2487 (2-016-N1173)

NIIN: 01-613-2487
In stock
NSN: 5331-01-613-2487
FSC Code: 5331
MPN: 2016N1173

5331-01-612-9763 (R63185)

NIIN: 01-612-9763
In stock
NSN: 5331-01-612-9763
FSC Code: 5331
MPN: R63185

5331-01-612-9511 (60-7746)

NIIN: 01-612-9511
In stock
NSN: 5331-01-612-9511
FSC Code: 5331
MPN: 607746

5331-01-612-9397 (24 153 01-S)

NIIN: 01-612-9397
In stock
NSN: 5331-01-612-9397
FSC Code: 5331
MPN: 2415301S

5331-01-612-7928 (XB-10539)

NIIN: 01-612-7928
In stock
NSN: 5331-01-612-7928
FSC Code: 5331
MPN: XB10539

5331-01-612-5752 (SD012200-395)

NIIN: 01-612-5752
In stock
NSN: 5331-01-612-5752
FSC Code: 5331
MPN: SD012200395

5331-01-613-2834 (LFEBNVD-015)

NIIN: 01-613-2834
In stock
NSN: 5331-01-613-2834
FSC Code: 5331
MPN: LFEBNVD015

5331-01-613-2843 (LFEBNVD-021)

NIIN: 01-613-2843
In stock
NSN: 5331-01-613-2843
FSC Code: 5331
MPN: LFEBNVD021

5331-01-613-0249 (AS9967-139)

NIIN: 01-613-0249
In stock
NSN: 5331-01-613-0249
FSC Code: 5331
MPN: AS9967139

5331-01-613-0131 (S12508-211)

NIIN: 01-613-0131
In stock
NSN: 5331-01-613-0131
FSC Code: 5331
MPN: S12508211

5331-01-612-9482 (11152L001)

NIIN: 01-612-9482
In stock
NSN: 5331-01-612-9482
FSC Code: 5331
MPN: 11152L001

5331-01-612-8998 (MS28900-48)

NIIN: 01-612-8998
In stock
NSN: 5331-01-612-8998
FSC Code: 5331
MPN: MS2890048

5331-01-612-8035 (M83248-1-013)

NIIN: 01-612-8035
In stock
NSN: 5331-01-612-8035
FSC Code: 5331
MPN: M832481013

5331-01-612-7778 (393)

NIIN: 01-612-7778
In stock
NSN: 5331-01-612-7778
FSC Code: 5331
MPN: 393

5331-01-612-7631 (SD051092-224417-8IN ITEM 4)

NIIN: 01-612-7631
In stock
NSN: 5331-01-612-7631
FSC Code: 5331
MPN: SD0510922244178INITEM4

5331-01-612-3246 (3461-13-104)

NIIN: 01-612-3246
In stock
NSN: 5331-01-612-3246
FSC Code: 5331
MPN: 346113104

5331-01-612-9760 (R525910)

NIIN: 01-612-9760
In stock
NSN: 5331-01-612-9760
FSC Code: 5331
MPN: R525910

5331-01-612-5997 (SD012200-405)

NIIN: 01-612-5997
In stock
NSN: 5331-01-612-5997
FSC Code: 5331
MPN: SD012200405

5331-01-612-2535 (ATV-618-TR PG 50 KEY 50)

NIIN: 01-612-2535
In stock
NSN: 5331-01-612-2535
FSC Code: 5331
MPN: ATV618TRPG50KEY50

5331-01-612-2457 (13029362)

NIIN: 01-612-2457
In stock
NSN: 5331-01-612-2457
FSC Code: 5331
MPN: 13029362

5331-01-612-7307 (294-1846)

NIIN: 01-612-7307
In stock
NSN: 5331-01-612-7307
FSC Code: 5331
MPN: 2941846

5331-01-612-1499 (C-3317-210-1)

NIIN: 01-612-1499
In stock
NSN: 5331-01-612-1499
FSC Code: 5331
MPN: C33172101

5331-01-612-1057 (E1MDL2SM-REV1211 ITEM NO. 26)

NIIN: 01-612-1057
In stock
NSN: 5331-01-612-1057
FSC Code: 5331
MPN: E1MDL2SMREV1211ITEMNO26

5331-01-612-8994 (332/E6244)

NIIN: 01-612-8994
In stock
NSN: 5331-01-612-8994
FSC Code: 5331
MPN: 332E6244

5331-01-612-2537 (ATV-618-TR PG 43 KEY 41)

NIIN: 01-612-2537
In stock
NSN: 5331-01-612-2537
FSC Code: 5331
MPN: ATV618TRPG43KEY41

5331-01-612-9058 (114699-01380)

NIIN: 01-612-9058
In stock
NSN: 5331-01-612-9058
FSC Code: 5331
MPN: 11469901380

5331-01-612-8313 (4951922-90)

NIIN: 01-612-8313
In stock
NSN: 5331-01-612-8313
FSC Code: 5331
MPN: 495192290

5331-01-612-7951 (385311238)

NIIN: 01-612-7951
In stock
NSN: 5331-01-612-7951
FSC Code: 5331
MPN: 385311238

5331-01-612-5435 (9626944)

NIIN: 01-612-5435
In stock
NSN: 5331-01-612-5435
FSC Code: 5331
MPN: 9626944

5331-01-612-5035 (SD012200-397)

NIIN: 01-612-5035
In stock
NSN: 5331-01-612-5035
FSC Code: 5331
MPN: SD012200397

5331-01-612-4362 (564800)

NIIN: 01-612-4362
In stock
NSN: 5331-01-612-4362
FSC Code: 5331
MPN: 564800

5331-01-612-4079 (9452K125)

NIIN: 01-612-4079
In stock
NSN: 5331-01-612-4079
FSC Code: 5331
MPN: 9452K125

5331-01-612-2520 (ATV-618-TR PG 53 KEY 37)

NIIN: 01-612-2520
In stock
NSN: 5331-01-612-2520
FSC Code: 5331
MPN: ATV618TRPG53KEY37

5331-01-612-2498 (ATV-618-TR PG 60 KEY 19)

NIIN: 01-612-2498
In stock
NSN: 5331-01-612-2498
FSC Code: 5331
MPN: ATV618TRPG60KEY19