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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.

5331-00-097-2600 (3995-03REVCLINE348)

NIIN: 00-097-2600
In stock
NSN: 5331-00-097-2600
FSC Code: 5331
MPN: 399503REVCLINE348

5331-01-393-2874 (12752-1117-0)

NIIN: 01-393-2874
In stock
NSN: 5331-01-393-2874
FSC Code: 5331
MPN: 1275211170

5331-01-264-9157 (398-425-71)

NIIN: 01-264-9157
In stock
NSN: 5331-01-264-9157
FSC Code: 5331
MPN: 39842571

5331-98-204-0827 (1272412-6)

NIIN: 98-204-0827
In stock
NSN: 5331-98-204-0827
FSC Code: 5331
MPN: 12724126

5331-01-277-7208 (398-118-72)

NIIN: 01-277-7208
In stock
NSN: 5331-01-277-7208
FSC Code: 5331
MPN: 39811872

5331-01-313-5694 (398-036-72)

NIIN: 01-313-5694
In stock
NSN: 5331-01-313-5694
FSC Code: 5331
MPN: 39803672

5331-01-124-5714 (3977-E)

NIIN: 01-124-5714
In stock
NSN: 5331-01-124-5714
FSC Code: 5331
MPN: 3977E

5331-01-263-4244 (3-96-N-552-90)

NIIN: 01-263-4244
In stock
NSN: 5331-01-263-4244
FSC Code: 5331
MPN: 396N55290

5331-01-204-8587 (39-619-70)

NIIN: 01-204-8587
In stock
NSN: 5331-01-204-8587
FSC Code: 5331
MPN: 3961970

5331-00-595-6581 (39-619-6H7)

NIIN: 00-595-6581
In stock
NSN: 5331-00-595-6581
FSC Code: 5331
MPN: 396196H7

5331-01-251-7578 (39-619-6-90)

NIIN: 01-251-7578
In stock
NSN: 5331-01-251-7578
FSC Code: 5331
MPN: 39619690

5331-00-461-5982 (39-619-6-70)

NIIN: 00-461-5982
In stock
NSN: 5331-00-461-5982
FSC Code: 5331
MPN: 39619670

5331-01-121-8330 (3960A848X34)

NIIN: 01-121-8330
In stock
NSN: 5331-01-121-8330
FSC Code: 5331
MPN: 3960A848X34

5331-01-121-8328 (3960A395X19)

NIIN: 01-121-8328
In stock
NSN: 5331-01-121-8328
FSC Code: 5331
MPN: 3960A395X19

5331-00-718-9295 (3960A395X83)

NIIN: 00-718-9295
In stock
NSN: 5331-00-718-9295
FSC Code: 5331
MPN: 3960A395X83

5331-01-122-0334 (3960A395X25)

NIIN: 01-122-0334
In stock
NSN: 5331-01-122-0334
FSC Code: 5331
MPN: 3960A395X25

5331-12-304-3696 (126000 700429126000)

NIIN: 12-304-3696
In stock
NSN: 5331-12-304-3696
FSC Code: 5331
MPN: 126000700429126000

5331-00-202-3979 (3-95691-1)

NIIN: 00-202-3979
In stock
NSN: 5331-00-202-3979
FSC Code: 5331
MPN: 3956911

5331-01-386-1416 (AS568-238)

NIIN: 01-386-1416
In stock
NSN: 5331-01-386-1416
FSC Code: 5331
MPN: AS568238

5331-01-371-7816 (AS568-336)

NIIN: 01-371-7816
In stock
NSN: 5331-01-371-7816
FSC Code: 5331
MPN: AS568336

5331-01-385-8240 (1269-26A)

NIIN: 01-385-8240
In stock
NSN: 5331-01-385-8240
FSC Code: 5331
MPN: 126926A

5331-01-386-2887 (1269-32)

NIIN: 01-386-2887
In stock
NSN: 5331-01-386-2887
FSC Code: 5331
MPN: 126932

5331-01-474-2027 (126-9339)

NIIN: 01-474-2027
In stock
NSN: 5331-01-474-2027
FSC Code: 5331
MPN: 1269339

5331-01-395-0851 (1268838H1)

NIIN: 01-395-0851
In stock
NSN: 5331-01-395-0851
FSC Code: 5331
MPN: 1268838H1

5331-01-426-0007 (1268-5296-0)

NIIN: 01-426-0007
In stock
NSN: 5331-01-426-0007
FSC Code: 5331
MPN: 126852960

5331-01-422-4944 (1268-5010-4)

NIIN: 01-422-4944
In stock
NSN: 5331-01-422-4944
FSC Code: 5331
MPN: 126850104

5331-01-397-5619 (1268-5013-2)

NIIN: 01-397-5619
In stock
NSN: 5331-01-397-5619
FSC Code: 5331
MPN: 126850132

5331-01-380-8740 (126-8307)

NIIN: 01-380-8740
In stock
NSN: 5331-01-380-8740
FSC Code: 5331
MPN: 1268307

5331-00-119-8099 (395-335-033)

NIIN: 00-119-8099
In stock
NSN: 5331-00-119-8099
FSC Code: 5331
MPN: 395335033

5331-00-119-7876 (395-335-036)

NIIN: 00-119-7876
In stock
NSN: 5331-00-119-7876
FSC Code: 5331
MPN: 395335036

5331-01-481-8497 (ORAR00126-N9038)

NIIN: 01-481-8497
In stock
NSN: 5331-01-481-8497
FSC Code: 5331
MPN: ORAR00126N9038

5331-00-119-8092 (395-286-018)

NIIN: 00-119-8092
In stock
NSN: 5331-00-119-8092
FSC Code: 5331
MPN: 395286018

5331-01-043-0048 (395-335-035)

NIIN: 01-043-0048
In stock
NSN: 5331-01-043-0048
FSC Code: 5331
MPN: 395335035

5331-00-119-8188 (395-286-015)

NIIN: 00-119-8188
In stock
NSN: 5331-00-119-8188
FSC Code: 5331
MPN: 395286015

5331-00-119-8091 (395-286-017)

NIIN: 00-119-8091
In stock
NSN: 5331-00-119-8091
FSC Code: 5331
MPN: 395286017

5331-00-119-8090 (395-286-016)

NIIN: 00-119-8090
In stock
NSN: 5331-00-119-8090
FSC Code: 5331
MPN: 395286016

5331-00-119-8187 (395-286-013)

NIIN: 00-119-8187
In stock
NSN: 5331-00-119-8187
FSC Code: 5331
MPN: 395286013

5331-01-487-7687 (126-6515)

NIIN: 01-487-7687
In stock
NSN: 5331-01-487-7687
FSC Code: 5331
MPN: 1266515

5331-01-487-7689 (126-6516)

NIIN: 01-487-7689
In stock
NSN: 5331-01-487-7689
FSC Code: 5331
MPN: 1266516

5331-01-487-7685 (126-6514)

NIIN: 01-487-7685
In stock
NSN: 5331-01-487-7685
FSC Code: 5331
MPN: 1266514

5331-01-250-6736 (3-932V709-90)

NIIN: 01-250-6736
In stock
NSN: 5331-01-250-6736
FSC Code: 5331
MPN: 3932V70990

5331-01-006-2120 (3-932)

NIIN: 01-006-2120
In stock
NSN: 5331-01-006-2120
FSC Code: 5331
MPN: 3932

5331-00-270-7795 (3-932E540-80)

NIIN: 00-270-7795
In stock
NSN: 5331-00-270-7795
FSC Code: 5331
MPN: 3932E54080

5331-00-752-8339 (3-932-E688-70)

NIIN: 00-752-8339
In stock
NSN: 5331-00-752-8339
FSC Code: 5331
MPN: 3932E68870

5331-01-151-2782 (3-932N683-70)

NIIN: 01-151-2782
In stock
NSN: 5331-01-151-2782
FSC Code: 5331
MPN: 3932N68370

5331-01-238-8892 (3-932B591-80)

NIIN: 01-238-8892
In stock
NSN: 5331-01-238-8892
FSC Code: 5331
MPN: 3932B59180

5331-01-453-6515 (126-43700-731-0160)

NIIN: 01-453-6515
In stock
NSN: 5331-01-453-6515
FSC Code: 5331
MPN: 126437007310160

5331-01-147-8678 (3-928L1223-60)

NIIN: 01-147-8678
In stock
NSN: 5331-01-147-8678
FSC Code: 5331
MPN: 3928L122360