Skip to content
News Industries Part Directory Excess Inventory Management Solutions Sitemap

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.

5331-01-029-7719 (L4353-29)

NIIN: 01-029-7719
In stock
NSN: 5331-01-029-7719
FSC Code: 5331
MPN: L435329

5331-01-148-0345 (L4100048-003)

NIIN: 01-148-0345
In stock
NSN: 5331-01-148-0345
FSC Code: 5331
MPN: L4100048003

5331-01-301-2079 (L35781)

NIIN: 01-301-2079
In stock
NSN: 5331-01-301-2079
FSC Code: 5331
MPN: L35781

5331-01-307-4992 (L35782)

NIIN: 01-307-4992
In stock
NSN: 5331-01-307-4992
FSC Code: 5331
MPN: L35782

5331-01-067-4755 (L33213)

NIIN: 01-067-4755
In stock
NSN: 5331-01-067-4755
FSC Code: 5331
MPN: L33213

5331-01-293-5265 (L33460)

NIIN: 01-293-5265
In stock
NSN: 5331-01-293-5265
FSC Code: 5331
MPN: L33460

5331-01-307-1800 (L33540)

NIIN: 01-307-1800
In stock
NSN: 5331-01-307-1800
FSC Code: 5331
MPN: L33540

5331-01-301-2075 (L32845)

NIIN: 01-301-2075
In stock
NSN: 5331-01-301-2075
FSC Code: 5331
MPN: L32845

5331-01-117-2302 (L32613)

NIIN: 01-117-2302
In stock
NSN: 5331-01-117-2302
FSC Code: 5331
MPN: L32613

5331-00-341-7756 (L3006-52)

NIIN: 00-341-7756
In stock
NSN: 5331-00-341-7756
FSC Code: 5331
MPN: L300652

5331-00-937-4485 (L3006-43)

NIIN: 00-937-4485
In stock
NSN: 5331-00-937-4485
FSC Code: 5331
MPN: L300643

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