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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.

5331-01-315-8726 (A-60996)

NIIN: 01-315-8726
In stock
NSN: 5331-01-315-8726
FSC Code: 5331
MPN: A60996

5331-01-315-8727 (A-60938)

NIIN: 01-315-8727
In stock
NSN: 5331-01-315-8727
FSC Code: 5331
MPN: A60938

5331-00-349-9666 (A-60723)

NIIN: 00-349-9666
In stock
NSN: 5331-00-349-9666
FSC Code: 5331
MPN: A60723

5331-00-708-1493 (A60600)

NIIN: 00-708-1493
In stock
NSN: 5331-00-708-1493
FSC Code: 5331
MPN: A60600

5331-00-708-1211 (A-60495)

NIIN: 00-708-1211
In stock
NSN: 5331-00-708-1211
FSC Code: 5331
MPN: A60495

5331-00-349-9667 (A-60496)

NIIN: 00-349-9667
In stock
NSN: 5331-00-349-9667
FSC Code: 5331
MPN: A60496

5331-00-459-0892 (A604-33)

NIIN: 00-459-0892
In stock
NSN: 5331-00-459-0892
FSC Code: 5331
MPN: A60433

5331-01-469-2403 (5-701-N674-70)

NIIN: 01-469-2403
In stock
NSN: 5331-01-469-2403
FSC Code: 5331
MPN: 5701N67470

5331-01-091-3331 (A-6008-509)

NIIN: 01-091-3331
In stock
NSN: 5331-01-091-3331
FSC Code: 5331
MPN: A6008509

5331-01-306-9846 (A5921)

NIIN: 01-306-9846
In stock
NSN: 5331-01-306-9846
FSC Code: 5331
MPN: A5921

5331-01-314-0817 (A58708)

NIIN: 01-314-0817
In stock
NSN: 5331-01-314-0817
FSC Code: 5331
MPN: A58708

5331-01-086-9808 (A58706)

NIIN: 01-086-9808
In stock
NSN: 5331-01-086-9808
FSC Code: 5331
MPN: A58706

5331-01-563-4922 (56AM)

NIIN: 01-563-4922
In stock
NSN: 5331-01-563-4922
FSC Code: 5331
MPN: 56AM

5331-01-418-1093 (58896CITEM74)

NIIN: 01-418-1093
In stock
NSN: 5331-01-418-1093
FSC Code: 5331
MPN: 58896CITEM74

5331-01-227-5675 (A57265-501)

NIIN: 01-227-5675
In stock
NSN: 5331-01-227-5675
FSC Code: 5331
MPN: A57265501

5331-01-226-8744 (A57265-500)

NIIN: 01-226-8744
In stock
NSN: 5331-01-226-8744
FSC Code: 5331
MPN: A57265500

5331-01-564-7542 (568-904)

NIIN: 01-564-7542
In stock
NSN: 5331-01-564-7542
FSC Code: 5331
MPN: 568904

5331-01-227-5676 (A57265-502)

NIIN: 01-227-5676
In stock
NSN: 5331-01-227-5676
FSC Code: 5331
MPN: A57265502

5331-01-190-1883 (A57116)

NIIN: 01-190-1883
In stock
NSN: 5331-01-190-1883
FSC Code: 5331
MPN: A57116

5331-01-063-1769 (A568-906)

NIIN: 01-063-1769
In stock
NSN: 5331-01-063-1769
FSC Code: 5331
MPN: A568906

5331-01-564-1015 (568-451)

NIIN: 01-564-1015
In stock
NSN: 5331-01-564-1015
FSC Code: 5331
MPN: 568451

5331-01-418-1091 (58896CITEM43)

NIIN: 01-418-1091
In stock
NSN: 5331-01-418-1091
FSC Code: 5331
MPN: 58896CITEM43

5331-00-006-6597 (A568-013)

NIIN: 00-006-6597
In stock
NSN: 5331-00-006-6597
FSC Code: 5331
MPN: A568013

5331-01-341-2135 (568-269N70R)

NIIN: 01-341-2135
In stock
NSN: 5331-01-341-2135
FSC Code: 5331
MPN: 568269N70R

5331-01-458-4221 (6499-354097-1)

NIIN: 01-458-4221
In stock
NSN: 5331-01-458-4221
FSC Code: 5331
MPN: 64993540971

5331-01-530-3708 (568214-2)

NIIN: 01-530-3708
In stock
NSN: 5331-01-530-3708
FSC Code: 5331
MPN: 5682142

5331-01-340-8223 (568222-7)

NIIN: 01-340-8223
In stock
NSN: 5331-01-340-8223
FSC Code: 5331
MPN: 5682227

5331-01-417-3864 (5682-005)

NIIN: 01-417-3864
In stock
NSN: 5331-01-417-3864
FSC Code: 5331
MPN: 5682005

5331-01-391-1484 (568-154-4200-70)

NIIN: 01-391-1484
In stock
NSN: 5331-01-391-1484
FSC Code: 5331
MPN: 568154420070

5331-01-418-1089 (58896CITEM31)

NIIN: 01-418-1089
In stock
NSN: 5331-01-418-1089
FSC Code: 5331
MPN: 58896CITEM31

5331-01-479-2038 (568-113)

NIIN: 01-479-2038
In stock
NSN: 5331-01-479-2038
FSC Code: 5331
MPN: 568113

5331-01-418-1094 (568016-24)

NIIN: 01-418-1094
In stock
NSN: 5331-01-418-1094
FSC Code: 5331
MPN: 56801624

5331-01-418-1092 (58896CITEM47)

NIIN: 01-418-1092
In stock
NSN: 5331-01-418-1092
FSC Code: 5331
MPN: 58896CITEM47

5331-01-418-3795 (58896CITEM39)

NIIN: 01-418-3795
In stock
NSN: 5331-01-418-3795
FSC Code: 5331
MPN: 58896CITEM39

5331-01-530-3707 (568012-7)

NIIN: 01-530-3707
In stock
NSN: 5331-01-530-3707
FSC Code: 5331
MPN: 5680127

5331-01-418-1090 (58896CITEM42)

NIIN: 01-418-1090
In stock
NSN: 5331-01-418-1090
FSC Code: 5331
MPN: 58896CITEM42

5331-01-494-3709 (568-008-N183-9)

NIIN: 01-494-3709
In stock
NSN: 5331-01-494-3709
FSC Code: 5331
MPN: 568008N1839

5331-01-287-6531 (A5568-720)

NIIN: 01-287-6531
In stock
NSN: 5331-01-287-6531
FSC Code: 5331
MPN: A5568720

5331-01-370-1083 (56654109-002)

NIIN: 01-370-1083
In stock
NSN: 5331-01-370-1083
FSC Code: 5331
MPN: 56654109002

5331-00-804-7767 (A5-51-273)

NIIN: 00-804-7767
In stock
NSN: 5331-00-804-7767
FSC Code: 5331
MPN: A551273

5331-01-528-7012 (5661-0905)

NIIN: 01-528-7012
In stock
NSN: 5331-01-528-7012
FSC Code: 5331
MPN: 56610905

5331-01-483-2870 (5661-0026)

NIIN: 01-483-2870
In stock
NSN: 5331-01-483-2870
FSC Code: 5331
MPN: 56610026

5331-99-372-9186 (5659-0001)

NIIN: 99-372-9186
In stock
NSN: 5331-99-372-9186
FSC Code: 5331
MPN: 56590001

5331-01-335-6202 (A5-4530)

NIIN: 01-335-6202
In stock
NSN: 5331-01-335-6202
FSC Code: 5331
MPN: A54530

5331-00-801-7568 (A5-4370)

NIIN: 00-801-7568
In stock
NSN: 5331-00-801-7568
FSC Code: 5331
MPN: A54370

5331-00-801-8975 (A5-440V)

NIIN: 00-801-8975
In stock
NSN: 5331-00-801-8975
FSC Code: 5331
MPN: A5440V

5331-00-801-8973 (A5-4230)

NIIN: 00-801-8973
In stock
NSN: 5331-00-801-8973
FSC Code: 5331
MPN: A54230

5331-00-803-5768 (A5-4316)

NIIN: 00-803-5768
In stock
NSN: 5331-00-803-5768
FSC Code: 5331
MPN: A54316