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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.

5331-01-551-4138 (828/00340)

NIIN: 01-551-4138
In stock
NSN: 5331-01-551-4138
FSC Code: 5331
MPN: 82800340

5331-00-124-1038 (L3006-67)

NIIN: 00-124-1038
In stock
NSN: 5331-00-124-1038
FSC Code: 5331
MPN: L300667

5331-01-107-0067 (L3006-14)

NIIN: 01-107-0067
In stock
NSN: 5331-01-107-0067
FSC Code: 5331
MPN: L300614

5331-00-121-2477 (L3006-2)

NIIN: 00-121-2477
In stock
NSN: 5331-00-121-2477
FSC Code: 5331
MPN: L30062

5331-00-086-8866 (L3006-9)

NIIN: 00-086-8866
In stock
NSN: 5331-00-086-8866
FSC Code: 5331
MPN: L30069

5331-00-070-1973 (L3006-7)

NIIN: 00-070-1973
In stock
NSN: 5331-00-070-1973
FSC Code: 5331
MPN: L30067

5331-00-122-7146 (L3006-4)

NIIN: 00-122-7146
In stock
NSN: 5331-00-122-7146
FSC Code: 5331
MPN: L30064

5331-00-070-1974 (L3006-45)

NIIN: 00-070-1974
In stock
NSN: 5331-00-070-1974
FSC Code: 5331
MPN: L300645

5331-00-070-1979 (L3006-126)

NIIN: 00-070-1979
In stock
NSN: 5331-00-070-1979
FSC Code: 5331
MPN: L3006126

5331-00-122-0692 (L3006-126)

NIIN: 00-122-0692
In stock
NSN: 5331-00-122-0692
FSC Code: 5331
MPN: L3006126

5331-00-070-1978 (L3006-113)

NIIN: 00-070-1978
In stock
NSN: 5331-00-070-1978
FSC Code: 5331
MPN: L3006113

5331-00-122-0690 (L3006-113)

NIIN: 00-122-0690
In stock
NSN: 5331-00-122-0690
FSC Code: 5331
MPN: L3006113

5331-00-070-1972 (L3006-1)

NIIN: 00-070-1972
In stock
NSN: 5331-00-070-1972
FSC Code: 5331
MPN: L30061

5331-00-139-8112 (L3006-111)

NIIN: 00-139-8112
In stock
NSN: 5331-00-139-8112
FSC Code: 5331
MPN: L3006111

5331-00-070-2068 (L3006-104)

NIIN: 00-070-2068
In stock
NSN: 5331-00-070-2068
FSC Code: 5331
MPN: L3006104

5331-00-369-5024 (L3006-109)

NIIN: 00-369-5024
In stock
NSN: 5331-00-369-5024
FSC Code: 5331
MPN: L3006109

5331-01-298-5801 (L2921-8307)

NIIN: 01-298-5801
In stock
NSN: 5331-01-298-5801
FSC Code: 5331
MPN: L29218307

5331-01-487-0288 (826502-151)

NIIN: 01-487-0288
In stock
NSN: 5331-01-487-0288
FSC Code: 5331
MPN: 826502151

5331-01-487-0291 (826502-226)

NIIN: 01-487-0291
In stock
NSN: 5331-01-487-0291
FSC Code: 5331
MPN: 826502226

5331-01-133-0887 (L2301CU)

NIIN: 01-133-0887
In stock
NSN: 5331-01-133-0887
FSC Code: 5331
MPN: L2301CU

5331-01-480-9128 (8260-366Y)

NIIN: 01-480-9128
In stock
NSN: 5331-01-480-9128
FSC Code: 5331
MPN: 8260366Y

5331-01-344-4228 (82601-5)

NIIN: 01-344-4228
In stock
NSN: 5331-01-344-4228
FSC Code: 5331
MPN: 826015

5331-01-344-4227 (82601-4)

NIIN: 01-344-4227
In stock
NSN: 5331-01-344-4227
FSC Code: 5331
MPN: 826014

5331-00-226-3519 (L180-013)

NIIN: 00-226-3519
In stock
NSN: 5331-00-226-3519
FSC Code: 5331
MPN: L180013

5331-01-418-9831 (R00180-040-70SLR)

NIIN: 01-418-9831
In stock
NSN: 5331-01-418-9831
FSC Code: 5331
MPN: R0018004070SLR

5331-01-412-4902 (8245-622)

NIIN: 01-412-4902
In stock
NSN: 5331-01-412-4902
FSC Code: 5331
MPN: 8245622

5331-01-567-9635 (8243455-1)

NIIN: 01-567-9635
In stock
NSN: 5331-01-567-9635
FSC Code: 5331
MPN: 82434551

5331-99-551-6126 (82401809-3)

NIIN: 99-551-6126
In stock
NSN: 5331-99-551-6126
FSC Code: 5331
MPN: 824018093

5331-01-525-8091 (8239-70156A)

NIIN: 01-525-8091
In stock
NSN: 5331-01-525-8091
FSC Code: 5331
MPN: 823970156A

5331-01-248-3254 (L1-104-135)

NIIN: 01-248-3254
In stock
NSN: 5331-01-248-3254
FSC Code: 5331
MPN: L1104135

5331-00-432-2912 (L07750ITEM63)

NIIN: 00-432-2912
In stock
NSN: 5331-00-432-2912
FSC Code: 5331
MPN: L07750ITEM63

5331-00-432-2906 (L07750)

NIIN: 00-432-2906
In stock
NSN: 5331-00-432-2906
FSC Code: 5331
MPN: L07750

5331-00-432-2904 (L07750ITEM64)

NIIN: 00-432-2904
In stock
NSN: 5331-00-432-2904
FSC Code: 5331
MPN: L07750ITEM64

5331-00-432-2913 (L07750ITEM60)

NIIN: 00-432-2913
In stock
NSN: 5331-00-432-2913
FSC Code: 5331
MPN: L07750ITEM60

5331-01-524-5430 (N0300-90)

NIIN: 01-524-5430
In stock
NSN: 5331-01-524-5430
FSC Code: 5331
MPN: N030090

5331-00-173-2920 (KW41-011F)

NIIN: 00-173-2920
In stock
NSN: 5331-00-173-2920
FSC Code: 5331
MPN: KW41011F

5331-01-231-2679 (KU82)

NIIN: 01-231-2679
In stock
NSN: 5331-01-231-2679
FSC Code: 5331
MPN: KU82

5331-01-440-6249 (821-2IN-PACKING)

NIIN: 01-440-6249
In stock
NSN: 5331-01-440-6249
FSC Code: 5331
MPN: 8212INPACKING

5331-00-624-4234 (KS15-6225-3)

NIIN: 00-624-4234
In stock
NSN: 5331-00-624-4234
FSC Code: 5331
MPN: KS1562253

5331-00-291-5774 (KS1287)

NIIN: 00-291-5774
In stock
NSN: 5331-00-291-5774
FSC Code: 5331
MPN: KS1287

5331-01-567-7041 (AS28775-237(MOD))

NIIN: 01-567-7041
In stock
NSN: 5331-01-567-7041
FSC Code: 5331
MPN: AS28775237MOD

5331-01-522-8281 (820-7425867PC1-34)

NIIN: 01-522-8281
In stock
NSN: 5331-01-522-8281
FSC Code: 5331
MPN: 8207425867PC134

5331-01-407-1682 (820-6652460-202)

NIIN: 01-407-1682
In stock
NSN: 5331-01-407-1682
FSC Code: 5331
MPN: 8206652460202

5331-01-454-5485 (820598PC3)

NIIN: 01-454-5485
In stock
NSN: 5331-01-454-5485
FSC Code: 5331
MPN: 820598PC3

5331-01-397-6882 (820-5787484)

NIIN: 01-397-6882
In stock
NSN: 5331-01-397-6882
FSC Code: 5331
MPN: 8205787484

5331-01-352-8909 (820-5348891-4)

NIIN: 01-352-8909
In stock
NSN: 5331-01-352-8909
FSC Code: 5331
MPN: 82053488914

5331-01-353-2768 (820-5348891-7)

NIIN: 01-353-2768
In stock
NSN: 5331-01-353-2768
FSC Code: 5331
MPN: 82053488917

5331-01-352-8907 (820-5348891-2)

NIIN: 01-352-8907
In stock
NSN: 5331-01-352-8907
FSC Code: 5331
MPN: 82053488912