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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.

5331-00-451-9217 (77-1-6)

NIIN: 00-451-9217
In stock
NSN: 5331-00-451-9217
FSC Code: 5331
MPN: 7716

5331-01-364-4937 (36694-240)

NIIN: 01-364-4937
In stock
NSN: 5331-01-364-4937
FSC Code: 5331
MPN: 36694240

5331-01-364-4770 (36694-32)

NIIN: 01-364-4770
In stock
NSN: 5331-01-364-4770
FSC Code: 5331
MPN: 3669432

5331-01-559-4555 (36604-361)

NIIN: 01-559-4555
In stock
NSN: 5331-01-559-4555
FSC Code: 5331
MPN: 36604361

5331-01-393-1829 (36-600-088)

NIIN: 01-393-1829
In stock
NSN: 5331-01-393-1829
FSC Code: 5331
MPN: 36600088

5331-00-849-1564 (76VF237)

NIIN: 00-849-1564
In stock
NSN: 5331-00-849-1564
FSC Code: 5331
MPN: 76VF237

5331-00-952-5369 (76VF333)

NIIN: 00-952-5369
In stock
NSN: 5331-00-952-5369
FSC Code: 5331
MPN: 76VF333

5331-00-905-3040 (76PC443)

NIIN: 00-905-3040
In stock
NSN: 5331-00-905-3040
FSC Code: 5331
MPN: 76PC443

5331-00-913-5980 (76PC329)

NIIN: 00-913-5980
In stock
NSN: 5331-00-913-5980
FSC Code: 5331
MPN: 76PC329

5331-00-902-2103 (76PC336)

NIIN: 00-902-2103
In stock
NSN: 5331-00-902-2103
FSC Code: 5331
MPN: 76PC336

5331-00-902-2104 (76PC339)

NIIN: 00-902-2104
In stock
NSN: 5331-00-902-2104
FSC Code: 5331
MPN: 76PC339

5331-00-069-3661 (76PC229)

NIIN: 00-069-3661
In stock
NSN: 5331-00-069-3661
FSC Code: 5331
MPN: 76PC229

5331-00-105-8664 (76PC229)

NIIN: 00-105-8664
In stock
NSN: 5331-00-105-8664
FSC Code: 5331
MPN: 76PC229

5331-00-925-4362 (76PC216)

NIIN: 00-925-4362
In stock
NSN: 5331-00-925-4362
FSC Code: 5331
MPN: 76PC216

5331-00-760-3993 (76PC223)

NIIN: 00-760-3993
In stock
NSN: 5331-00-760-3993
FSC Code: 5331
MPN: 76PC223

5331-00-105-8663 (76PC120)

NIIN: 00-105-8663
In stock
NSN: 5331-00-105-8663
FSC Code: 5331
MPN: 76PC120

5331-00-965-9899 (76NC224)

NIIN: 00-965-9899
In stock
NSN: 5331-00-965-9899
FSC Code: 5331
MPN: 76NC224

5331-00-952-6613 (76NC227)

NIIN: 00-952-6613
In stock
NSN: 5331-00-952-6613
FSC Code: 5331
MPN: 76NC227

5331-00-952-5368 (76NC327)

NIIN: 00-952-5368
In stock
NSN: 5331-00-952-5368
FSC Code: 5331
MPN: 76NC327

5331-00-965-9900 (76NC226)

NIIN: 00-965-9900
In stock
NSN: 5331-00-965-9900
FSC Code: 5331
MPN: 76NC226

5331-00-965-9895 (76NC116)

NIIN: 00-965-9895
In stock
NSN: 5331-00-965-9895
FSC Code: 5331
MPN: 76NC116

5331-00-965-9898 (76NC217)

NIIN: 00-965-9898
In stock
NSN: 5331-00-965-9898
FSC Code: 5331
MPN: 76NC217

5331-00-965-9897 (76NC137)

NIIN: 00-965-9897
In stock
NSN: 5331-00-965-9897
FSC Code: 5331
MPN: 76NC137

5331-00-965-9893 (76NC014)

NIIN: 00-965-9893
In stock
NSN: 5331-00-965-9893
FSC Code: 5331
MPN: 76NC014

5331-00-965-9896 (76NC133)

NIIN: 00-965-9896
In stock
NSN: 5331-00-965-9896
FSC Code: 5331
MPN: 76NC133

5331-00-952-5365 (76NC032)

NIIN: 00-952-5365
In stock
NSN: 5331-00-952-5365
FSC Code: 5331
MPN: 76NC032

5331-00-965-9894 (76NC023)

NIIN: 00-965-9894
In stock
NSN: 5331-00-965-9894
FSC Code: 5331
MPN: 76NC023

5331-00-965-9892 (76NC029)

NIIN: 00-965-9892
In stock
NSN: 5331-00-965-9892
FSC Code: 5331
MPN: 76NC029

5331-00-952-6612 (76NC017)

NIIN: 00-952-6612
In stock
NSN: 5331-00-952-6612
FSC Code: 5331
MPN: 76NC017

5331-01-394-0319 (364879R1)

NIIN: 01-394-0319
In stock
NSN: 5331-01-394-0319
FSC Code: 5331
MPN: 364879R1

5331-01-275-3336 (76E9)

NIIN: 01-275-3336
In stock
NSN: 5331-01-275-3336
FSC Code: 5331
MPN: 76E9

5331-01-278-7624 (76E10)

NIIN: 01-278-7624
In stock
NSN: 5331-01-278-7624
FSC Code: 5331
MPN: 76E10

5331-01-406-2562 (36456-06)

NIIN: 01-406-2562
In stock
NSN: 5331-01-406-2562
FSC Code: 5331
MPN: 3645606

5331-01-406-2565 (36456-03)

NIIN: 01-406-2565
In stock
NSN: 5331-01-406-2565
FSC Code: 5331
MPN: 3645603

5331-01-572-6755 (36451227-000)

NIIN: 01-572-6755
In stock
NSN: 5331-01-572-6755
FSC Code: 5331
MPN: 36451227000

5331-01-406-6393 (ORB-114TC)

NIIN: 01-406-6393
In stock
NSN: 5331-01-406-6393
FSC Code: 5331
MPN: ORB114TC

5331-01-528-2395 (364-48430-000)

NIIN: 01-528-2395
In stock
NSN: 5331-01-528-2395
FSC Code: 5331
MPN: 36448430000

5331-01-538-8304 (364-40409P/OPC74)

NIIN: 01-538-8304
In stock
NSN: 5331-01-538-8304
FSC Code: 5331
MPN: 36440409POPC74

5331-01-529-0047 (364-0328-457)

NIIN: 01-529-0047
In stock
NSN: 5331-01-529-0047
FSC Code: 5331
MPN: 3640328457

5331-01-372-9387 (364-0492-457)

NIIN: 01-372-9387
In stock
NSN: 5331-01-372-9387
FSC Code: 5331
MPN: 3640492457

5331-01-568-2040 (364-0375-457)

NIIN: 01-568-2040
In stock
NSN: 5331-01-568-2040
FSC Code: 5331
MPN: 3640375457

5331-01-352-7487 (364-0365-457)

NIIN: 01-352-7487
In stock
NSN: 5331-01-352-7487
FSC Code: 5331
MPN: 3640365457

5331-01-339-8844 (364-0551-457)

NIIN: 01-339-8844
In stock
NSN: 5331-01-339-8844
FSC Code: 5331
MPN: 3640551457

5331-01-443-6624 (999-712S-A-002)

NIIN: 01-443-6624
In stock
NSN: 5331-01-443-6624
FSC Code: 5331
MPN: 999712SA002

5331-01-444-0268 (364-0355-474)

NIIN: 01-444-0268
In stock
NSN: 5331-01-444-0268
FSC Code: 5331
MPN: 3640355474

5331-01-085-8386 (76902-31-015)

NIIN: 01-085-8386
In stock
NSN: 5331-01-085-8386
FSC Code: 5331
MPN: 7690231015

5331-01-077-1947 (76902-31-144)

NIIN: 01-077-1947
In stock
NSN: 5331-01-077-1947
FSC Code: 5331
MPN: 7690231144

5331-01-085-8390 (76902-31-028)

NIIN: 01-085-8390
In stock
NSN: 5331-01-085-8390
FSC Code: 5331
MPN: 7690231028