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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.

5331-00-821-8845 (MILG22050)

NIIN: 00-821-8845
In stock
NSN: 5331-00-821-8845
FSC Code: 5331
MPN: MILG22050

5331-00-835-9081 (MILG22050)

NIIN: 00-835-9081
In stock
NSN: 5331-00-835-9081
FSC Code: 5331
MPN: MILG22050

5331-00-585-3172 (MILG22050)

NIIN: 00-585-3172
In stock
NSN: 5331-00-585-3172
FSC Code: 5331
MPN: MILG22050

5331-01-545-0145 (9341-229-00J)

NIIN: 01-545-0145
In stock
NSN: 5331-01-545-0145
FSC Code: 5331
MPN: 934122900J

5331-00-599-0466 (MIL-G-1149C)

NIIN: 00-599-0466
In stock
NSN: 5331-00-599-0466
FSC Code: 5331
MPN: MILG1149C

5331-01-441-5792 (9339-987)

NIIN: 01-441-5792
In stock
NSN: 5331-01-441-5792
FSC Code: 5331
MPN: 9339987

5331-00-726-0821 (MIL-G-1149)

NIIN: 00-726-0821
In stock
NSN: 5331-00-726-0821
FSC Code: 5331
MPN: MILG1149

5331-01-416-5459 (93382-A)

NIIN: 01-416-5459
In stock
NSN: 5331-01-416-5459
FSC Code: 5331
MPN: 93382A

5331-01-506-3769 (M83248/2-264)

NIIN: 01-506-3769
In stock
NSN: 5331-01-506-3769
FSC Code: 5331
MPN: M832482264

5331-15-179-8763 (990R123268SNO)

NIIN: 15-179-8763
In stock
NSN: 5331-15-179-8763
FSC Code: 5331
MPN: 990R123268SNO

5331-01-545-9680 (9327-023-00U)

NIIN: 01-545-9680
In stock
NSN: 5331-01-545-9680
FSC Code: 5331
MPN: 932702300U

5331-01-546-6173 (9327-019-009)

NIIN: 01-546-6173
In stock
NSN: 5331-01-546-6173
FSC Code: 5331
MPN: 9327019009

5331-01-545-9679 (9327-018-00D)

NIIN: 01-545-9679
In stock
NSN: 5331-01-545-9679
FSC Code: 5331
MPN: 932701800D

5331-01-546-1509 (9327-017-00H)

NIIN: 01-546-1509
In stock
NSN: 5331-01-546-1509
FSC Code: 5331
MPN: 932701700H

5331-00-187-5998 (MIL-DTL-25988/2)

NIIN: 00-187-5998
In stock
NSN: 5331-00-187-5998
FSC Code: 5331
MPN: MILDTL259882

5331-01-207-5943 (MIL-DTL-25988/1)

NIIN: 01-207-5943
In stock
NSN: 5331-01-207-5943
FSC Code: 5331
MPN: MILDTL259881

5331-00-892-1556 (MIL-DTL-22050)

NIIN: 00-892-1556
In stock
NSN: 5331-00-892-1556
FSC Code: 5331
MPN: MILDTL22050

5331-00-803-8019 (MIL-DTL-22050)

NIIN: 00-803-8019
In stock
NSN: 5331-00-803-8019
FSC Code: 5331
MPN: MILDTL22050

5331-00-585-3168 (MIL-DTL-22050)

NIIN: 00-585-3168
In stock
NSN: 5331-00-585-3168
FSC Code: 5331
MPN: MILDTL22050

5331-01-545-8752 (9314-012-00Z)

NIIN: 01-545-8752
In stock
NSN: 5331-01-545-8752
FSC Code: 5331
MPN: 931401200Z

5331-01-437-3844 (9313-150-00S)

NIIN: 01-437-3844
In stock
NSN: 5331-01-437-3844
FSC Code: 5331
MPN: 931315000S

5331-99-117-9209 (FJ.11.0009984)

NIIN: 99-117-9209
In stock
NSN: 5331-99-117-9209
FSC Code: 5331
MPN: FJ110009984

5331-01-374-8601 (931162SYM26)

NIIN: 01-374-8601
In stock
NSN: 5331-01-374-8601
FSC Code: 5331
MPN: 931162SYM26

5331-01-374-8599 (931162SYM19)

NIIN: 01-374-8599
In stock
NSN: 5331-01-374-8599
FSC Code: 5331
MPN: 931162SYM19

5331-01-374-8602 (931162SYM27)

NIIN: 01-374-8602
In stock
NSN: 5331-01-374-8602
FSC Code: 5331
MPN: 931162SYM27

5331-01-374-8604 (931162SYM36)

NIIN: 01-374-8604
In stock
NSN: 5331-01-374-8604
FSC Code: 5331
MPN: 931162SYM36

5331-01-374-8600 (931162SYM23)

NIIN: 01-374-8600
In stock
NSN: 5331-01-374-8600
FSC Code: 5331
MPN: 931162SYM23

5331-01-374-8603 (931162SYM30)

NIIN: 01-374-8603
In stock
NSN: 5331-01-374-8603
FSC Code: 5331
MPN: 931162SYM30

5331-01-374-8598 (931162SYM13)

NIIN: 01-374-8598
In stock
NSN: 5331-01-374-8598
FSC Code: 5331
MPN: 931162SYM13

5331-01-408-8566 (930624PC26)

NIIN: 01-408-8566
In stock
NSN: 5331-01-408-8566
FSC Code: 5331
MPN: 930624PC26

5331-01-369-5502 (930624PC46)

NIIN: 01-369-5502
In stock
NSN: 5331-01-369-5502
FSC Code: 5331
MPN: 930624PC46

5331-01-369-8651 (930624PC21)

NIIN: 01-369-8651
In stock
NSN: 5331-01-369-8651
FSC Code: 5331
MPN: 930624PC21

5331-01-369-5834 (930623PC25)

NIIN: 01-369-5834
In stock
NSN: 5331-01-369-5834
FSC Code: 5331
MPN: 930623PC25

5331-01-369-5836 (930623PC10)

NIIN: 01-369-5836
In stock
NSN: 5331-01-369-5836
FSC Code: 5331
MPN: 930623PC10

5331-12-361-2058 (9304131H-K)

NIIN: 12-361-2058
In stock
NSN: 5331-12-361-2058
FSC Code: 5331
MPN: 9304131HK

5331-01-482-2005 (930358C1)

NIIN: 01-482-2005
In stock
NSN: 5331-01-482-2005
FSC Code: 5331
MPN: 930358C1

5331-12-361-2057 (9304304N)

NIIN: 12-361-2057
In stock
NSN: 5331-12-361-2057
FSC Code: 5331
MPN: 9304304N

5331-01-482-2006 (930369C1)

NIIN: 01-482-2006
In stock
NSN: 5331-01-482-2006
FSC Code: 5331
MPN: 930369C1

5331-01-555-1370 (ORM0300-09200)

NIIN: 01-555-1370
In stock
NSN: 5331-01-555-1370
FSC Code: 5331
MPN: ORM030009200

5331-01-533-4279 (9263K238)

NIIN: 01-533-4279
In stock
NSN: 5331-01-533-4279
FSC Code: 5331
MPN: 9263K238

5331-01-541-6599 (9263K292)

NIIN: 01-541-6599
In stock
NSN: 5331-01-541-6599
FSC Code: 5331
MPN: 9263K292

5331-01-533-4280 (9263K212)

NIIN: 01-533-4280
In stock
NSN: 5331-01-533-4280
FSC Code: 5331
MPN: 9263K212

5331-01-572-1990 (9262K569)

NIIN: 01-572-1990
In stock
NSN: 5331-01-572-1990
FSC Code: 5331
MPN: 9262K569

5331-01-570-2389 (MIL-001-598)

NIIN: 01-570-2389
In stock
NSN: 5331-01-570-2389
FSC Code: 5331
MPN: MIL001598

5331-01-563-9254 (9262K592)

NIIN: 01-563-9254
In stock
NSN: 5331-01-563-9254
FSC Code: 5331
MPN: 9262K592

5331-01-562-9799 (9262K41205)

NIIN: 01-562-9799
In stock
NSN: 5331-01-562-9799
FSC Code: 5331
MPN: 9262K41205

5331-01-425-1553 (9262K161)

NIIN: 01-425-1553
In stock
NSN: 5331-01-425-1553
FSC Code: 5331
MPN: 9262K161

5331-01-491-6828 (925260-2)

NIIN: 01-491-6828
In stock
NSN: 5331-01-491-6828
FSC Code: 5331
MPN: 9252602