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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.

5331-01-382-9824 (631-103C-24)

NIIN: 01-382-9824
In stock
NSN: 5331-01-382-9824
FSC Code: 5331
MPN: 631103C24

5331-01-280-6508 (C-234200-001)

NIIN: 01-280-6508
In stock
NSN: 5331-01-280-6508
FSC Code: 5331
MPN: C234200001

5331-01-382-9018 (631-103C-38)

NIIN: 01-382-9018
In stock
NSN: 5331-01-382-9018
FSC Code: 5331
MPN: 631103C38

5331-01-382-9828 (631-103C-15)

NIIN: 01-382-9828
In stock
NSN: 5331-01-382-9828
FSC Code: 5331
MPN: 631103C15

5331-01-383-7574 (631-103C-22)

NIIN: 01-383-7574
In stock
NSN: 5331-01-383-7574
FSC Code: 5331
MPN: 631103C22

5331-01-278-9477 (C-231986-030)

NIIN: 01-278-9477
In stock
NSN: 5331-01-278-9477
FSC Code: 5331
MPN: C231986030

5331-01-277-9790 (C-231986-02)

NIIN: 01-277-9790
In stock
NSN: 5331-01-277-9790
FSC Code: 5331
MPN: C23198602

5331-01-408-2196 (630BPIECE4ANON-AS)

NIIN: 01-408-2196
In stock
NSN: 5331-01-408-2196
FSC Code: 5331
MPN: 630BPIECE4ANONAS

5331-01-526-3090 (ML12481156G1)

NIIN: 01-526-3090
In stock
NSN: 5331-01-526-3090
FSC Code: 5331
MPN: ML12481156G1

5331-01-126-0836 (C2-163)

NIIN: 01-126-0836
In stock
NSN: 5331-01-126-0836
FSC Code: 5331
MPN: C2163

5331-01-549-3945 (6304534-10)

NIIN: 01-549-3945
In stock
NSN: 5331-01-549-3945
FSC Code: 5331
MPN: 630453410

5331-01-214-5084 (C212-558113)

NIIN: 01-214-5084
In stock
NSN: 5331-01-214-5084
FSC Code: 5331
MPN: C212558113

5331-01-214-5086 (C212-558016)

NIIN: 01-214-5086
In stock
NSN: 5331-01-214-5086
FSC Code: 5331
MPN: C212558016

5331-12-361-0896 (6301.150.410.122)

NIIN: 12-361-0896
In stock
NSN: 5331-12-361-0896
FSC Code: 5331
MPN: 6301150410122

5331-00-274-7863 (C2-010TFE)

NIIN: 00-274-7863
In stock
NSN: 5331-00-274-7863
FSC Code: 5331
MPN: C2010TFE

5331-01-528-8706 (62A114-B129)

NIIN: 01-528-8706
In stock
NSN: 5331-01-528-8706
FSC Code: 5331
MPN: 62A114B129

5331-01-218-1184 (C19138-4)

NIIN: 01-218-1184
In stock
NSN: 5331-01-218-1184
FSC Code: 5331
MPN: C191384

5331-01-122-5494 (C15E2B-339N-01)

NIIN: 01-122-5494
In stock
NSN: 5331-01-122-5494
FSC Code: 5331
MPN: C15E2B339N01

5331-01-047-9368 (C-155-222)

NIIN: 01-047-9368
In stock
NSN: 5331-01-047-9368
FSC Code: 5331
MPN: C155222

5331-00-411-6506 (C155-231)

NIIN: 00-411-6506
In stock
NSN: 5331-00-411-6506
FSC Code: 5331
MPN: C155231

5331-00-913-9494 (C155-118-70)

NIIN: 00-913-9494
In stock
NSN: 5331-00-913-9494
FSC Code: 5331
MPN: C15511870

5331-00-229-2886 (C155-216-70A)

NIIN: 00-229-2886
In stock
NSN: 5331-00-229-2886
FSC Code: 5331
MPN: C15521670A

5331-01-267-1229 (C-155-137-70-V)

NIIN: 01-267-1229
In stock
NSN: 5331-01-267-1229
FSC Code: 5331
MPN: C15513770V

5331-01-294-8665 (C-155-034-70)

NIIN: 01-294-8665
In stock
NSN: 5331-01-294-8665
FSC Code: 5331
MPN: C15503470

5331-01-258-9141 (C-155-123-70-V)

NIIN: 01-258-9141
In stock
NSN: 5331-01-258-9141
FSC Code: 5331
MPN: C15512370V

5331-00-477-4740 (C155-126-70V)

NIIN: 00-477-4740
In stock
NSN: 5331-00-477-4740
FSC Code: 5331
MPN: C15512670V

5331-00-913-6597 (C155-022-70)

NIIN: 00-913-6597
In stock
NSN: 5331-00-913-6597
FSC Code: 5331
MPN: C15502270

5331-00-805-5455 (C155-020V1T0N)

NIIN: 00-805-5455
In stock
NSN: 5331-00-805-5455
FSC Code: 5331
MPN: C155020V1T0N

5331-01-255-4892 (C15104)

NIIN: 01-255-4892
In stock
NSN: 5331-01-255-4892
FSC Code: 5331
MPN: C15104

5331-01-265-8818 (C14627-2)

NIIN: 01-265-8818
In stock
NSN: 5331-01-265-8818
FSC Code: 5331
MPN: C146272

5331-01-265-8819 (C14627-4)

NIIN: 01-265-8819
In stock
NSN: 5331-01-265-8819
FSC Code: 5331
MPN: C146274

5331-01-284-1423 (C14597-2/0295-30)

NIIN: 01-284-1423
In stock
NSN: 5331-01-284-1423
FSC Code: 5331
MPN: C145972029530

5331-01-284-0867 (C14597-4)

NIIN: 01-284-0867
In stock
NSN: 5331-01-284-0867
FSC Code: 5331
MPN: C145974

5331-01-265-8817 (C14560-3)

NIIN: 01-265-8817
In stock
NSN: 5331-01-265-8817
FSC Code: 5331
MPN: C145603

5331-01-207-7598 (C-144427-13)

NIIN: 01-207-7598
In stock
NSN: 5331-01-207-7598
FSC Code: 5331
MPN: C14442713

5331-01-207-7599 (C-144427-14)

NIIN: 01-207-7599
In stock
NSN: 5331-01-207-7599
FSC Code: 5331
MPN: C14442714

5331-01-359-6705 (627A106AEP1)

NIIN: 01-359-6705
In stock
NSN: 5331-01-359-6705
FSC Code: 5331
MPN: 627A106AEP1

5331-01-562-9700 (AS-568A-393-60EP)

NIIN: 01-562-9700
In stock
NSN: 5331-01-562-9700
FSC Code: 5331
MPN: AS568A39360EP

5331-01-538-1335 (6275E30-ITEM98)

NIIN: 01-538-1335
In stock
NSN: 5331-01-538-1335
FSC Code: 5331
MPN: 6275E30ITEM98

5331-01-537-6648 (AS-568B-236-70EP)

NIIN: 01-537-6648
In stock
NSN: 5331-01-537-6648
FSC Code: 5331
MPN: AS568B23670EP

5331-01-538-1330 (6275E30-ITEM96)

NIIN: 01-538-1330
In stock
NSN: 5331-01-538-1330
FSC Code: 5331
MPN: 6275E30ITEM96

5331-01-537-6653 (AS-568B-441-70EP)

NIIN: 01-537-6653
In stock
NSN: 5331-01-537-6653
FSC Code: 5331
MPN: AS568B44170EP

5331-01-538-1332 (6275E30-ITEM97)

NIIN: 01-538-1332
In stock
NSN: 5331-01-538-1332
FSC Code: 5331
MPN: 6275E30ITEM97

5331-01-537-6649 (AS-568B-226-70EP)

NIIN: 01-537-6649
In stock
NSN: 5331-01-537-6649
FSC Code: 5331
MPN: AS568B22670EP

5331-01-538-1328 (6275E30-ITEM95)

NIIN: 01-538-1328
In stock
NSN: 5331-01-538-1328
FSC Code: 5331
MPN: 6275E30ITEM95

5331-01-538-8590 (6273E38-ITEM43)

NIIN: 01-538-8590
In stock
NSN: 5331-01-538-8590
FSC Code: 5331
MPN: 6273E38ITEM43

5331-01-538-8588 (6273E38-ITEM42)

NIIN: 01-538-8588
In stock
NSN: 5331-01-538-8588
FSC Code: 5331
MPN: 6273E38ITEM42

5331-01-538-8585 (6273E38-ITEM41)

NIIN: 01-538-8585
In stock
NSN: 5331-01-538-8585
FSC Code: 5331
MPN: 6273E38ITEM41