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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.

5331-01-365-1066 (NAS1601-128)

NIIN: 01-365-1066
In stock
NSN: 5331-01-365-1066
FSC Code: 5331
MPN: NAS1601128

5331-01-420-0870 (NAS1601-131)

NIIN: 01-420-0870
In stock
NSN: 5331-01-420-0870
FSC Code: 5331
MPN: NAS1601131

5331-01-359-2117 (NAS1601-036)

NIIN: 01-359-2117
In stock
NSN: 5331-01-359-2117
FSC Code: 5331
MPN: NAS1601036

5331-01-387-5853 (NAS1601-105)

NIIN: 01-387-5853
In stock
NSN: 5331-01-387-5853
FSC Code: 5331
MPN: NAS1601105

5331-01-551-0741 (NAS1601-120)

NIIN: 01-551-0741
In stock
NSN: 5331-01-551-0741
FSC Code: 5331
MPN: NAS1601120

5331-01-473-6866 (NAS1601-041)

NIIN: 01-473-6866
In stock
NSN: 5331-01-473-6866
FSC Code: 5331
MPN: NAS1601041

5331-01-414-6609 (NAS1601-044)

NIIN: 01-414-6609
In stock
NSN: 5331-01-414-6609
FSC Code: 5331
MPN: NAS1601044

5331-01-392-3642 (NAS1601-116)

NIIN: 01-392-3642
In stock
NSN: 5331-01-392-3642
FSC Code: 5331
MPN: NAS1601116

5331-01-357-7176 (NAS1601-123)

NIIN: 01-357-7176
In stock
NSN: 5331-01-357-7176
FSC Code: 5331
MPN: NAS1601123

5331-01-412-5383 (NAS1601-006)

NIIN: 01-412-5383
In stock
NSN: 5331-01-412-5383
FSC Code: 5331
MPN: NAS1601006

5331-01-473-6901 (NAS1601-042)

NIIN: 01-473-6901
In stock
NSN: 5331-01-473-6901
FSC Code: 5331
MPN: NAS1601042

5331-01-389-4461 (NAS1601-022)

NIIN: 01-389-4461
In stock
NSN: 5331-01-389-4461
FSC Code: 5331
MPN: NAS1601022

5331-01-475-3116 (NAS1601-047)

NIIN: 01-475-3116
In stock
NSN: 5331-01-475-3116
FSC Code: 5331
MPN: NAS1601047

5331-01-519-5834 (NAS1593-139)

NIIN: 01-519-5834
In stock
NSN: 5331-01-519-5834
FSC Code: 5331
MPN: NAS1593139

5331-01-356-3140 (NAS1601-019)

NIIN: 01-356-3140
In stock
NSN: 5331-01-356-3140
FSC Code: 5331
MPN: NAS1601019

5331-01-428-7106 (NAS1601-024)

NIIN: 01-428-7106
In stock
NSN: 5331-01-428-7106
FSC Code: 5331
MPN: NAS1601024

5331-01-399-3906 (NAS1601-020)

NIIN: 01-399-3906
In stock
NSN: 5331-01-399-3906
FSC Code: 5331
MPN: NAS1601020

5331-01-415-1169 (NAS1601-013)

NIIN: 01-415-1169
In stock
NSN: 5331-01-415-1169
FSC Code: 5331
MPN: NAS1601013

5331-01-365-1067 (NAS1611-030A)

NIIN: 01-365-1067
In stock
NSN: 5331-01-365-1067
FSC Code: 5331
MPN: NAS1611030A

5331-01-349-2771 (NAS1601-010)

NIIN: 01-349-2771
In stock
NSN: 5331-01-349-2771
FSC Code: 5331
MPN: NAS1601010

5331-01-514-0946 (NAS1595-12)

NIIN: 01-514-0946
In stock
NSN: 5331-01-514-0946
FSC Code: 5331
MPN: NAS159512

5331-01-514-0944 (NAS1595-10)

NIIN: 01-514-0944
In stock
NSN: 5331-01-514-0944
FSC Code: 5331
MPN: NAS159510

5331-01-513-5196 (NAS1593-117)

NIIN: 01-513-5196
In stock
NSN: 5331-01-513-5196
FSC Code: 5331
MPN: NAS1593117

5331-01-429-5549 (P10640E)

NIIN: 01-429-5549
In stock
NSN: 5331-01-429-5549
FSC Code: 5331
MPN: P10640E

5331-01-346-0273 (P4917A)

NIIN: 01-346-0273
In stock
NSN: 5331-01-346-0273
FSC Code: 5331
MPN: P4917A

5331-01-560-8681 (W-402F-A10ITEM69)

NIIN: 01-560-8681
In stock
NSN: 5331-01-560-8681
FSC Code: 5331
MPN: W402FA10ITEM69

5331-01-568-5302 (N93902)

NIIN: 01-568-5302
In stock
NSN: 5331-01-568-5302
FSC Code: 5331
MPN: N93902

5331-01-568-5311 (N93908)

NIIN: 01-568-5311
In stock
NSN: 5331-01-568-5311
FSC Code: 5331
MPN: N93908

5331-01-443-0314 (N94-84908)

NIIN: 01-443-0314
In stock
NSN: 5331-01-443-0314
FSC Code: 5331
MPN: N9484908

5331-01-408-9464 (N92034)

NIIN: 01-408-9464
In stock
NSN: 5331-01-408-9464
FSC Code: 5331
MPN: N92034

5331-01-543-2884 (W-202F-A02-3ITEM18)

NIIN: 01-543-2884
In stock
NSN: 5331-01-543-2884
FSC Code: 5331
MPN: W202FA023ITEM18

5331-01-525-4772 (N92145)

NIIN: 01-525-4772
In stock
NSN: 5331-01-525-4772
FSC Code: 5331
MPN: N92145

5331-01-347-4320 (W-302H-A19-4)

NIIN: 01-347-4320
In stock
NSN: 5331-01-347-4320
FSC Code: 5331
MPN: W302HA194

5331-01-417-2944 (N91-87110)

NIIN: 01-417-2944
In stock
NSN: 5331-01-417-2944
FSC Code: 5331
MPN: N9187110

5331-01-417-7798 (N-912SH2PC9)

NIIN: 01-417-7798
In stock
NSN: 5331-01-417-7798
FSC Code: 5331
MPN: N912SH2PC9

5331-01-412-0887 (N92144)

NIIN: 01-412-0887
In stock
NSN: 5331-01-412-0887
FSC Code: 5331
MPN: N92144

5331-01-417-7797 (N-912SH2PC64A)

NIIN: 01-417-7797
In stock
NSN: 5331-01-417-7797
FSC Code: 5331
MPN: N912SH2PC64A

5331-01-417-7800 (N-912SH2PC17)

NIIN: 01-417-7800
In stock
NSN: 5331-01-417-7800
FSC Code: 5331
MPN: N912SH2PC17

5331-01-411-3836 (N90-81617)

NIIN: 01-411-3836
In stock
NSN: 5331-01-411-3836
FSC Code: 5331
MPN: N9081617

5331-01-417-7799 (N-912SH2PC35)

NIIN: 01-417-7799
In stock
NSN: 5331-01-417-7799
FSC Code: 5331
MPN: N912SH2PC35

5331-01-362-3954 (N-912SH2PC64A)

NIIN: 01-362-3954
In stock
NSN: 5331-01-362-3954
FSC Code: 5331
MPN: N912SH2PC64A

5331-01-483-5123 (N90466301)

NIIN: 01-483-5123
In stock
NSN: 5331-01-483-5123
FSC Code: 5331
MPN: N90466301

5331-01-417-2943 (N90-87124)

NIIN: 01-417-2943
In stock
NSN: 5331-01-417-2943
FSC Code: 5331
MPN: N9087124

5331-01-503-5825 (N795043-00)

NIIN: 01-503-5825
In stock
NSN: 5331-01-503-5825
FSC Code: 5331
MPN: N79504300

5331-01-424-1864 (N75687)

NIIN: 01-424-1864
In stock
NSN: 5331-01-424-1864
FSC Code: 5331
MPN: N75687

5331-14-393-0102 (PS701-6006-208)

NIIN: 14-393-0102
In stock
NSN: 5331-14-393-0102
FSC Code: 5331
MPN: PS7016006208

5331-15-147-4604 (N7422317033)

NIIN: 15-147-4604
In stock
NSN: 5331-15-147-4604
FSC Code: 5331
MPN: N7422317033

5331-15-113-4272 (PS701-6006-138)

NIIN: 15-113-4272
In stock
NSN: 5331-15-113-4272
FSC Code: 5331
MPN: PS7016006138