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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.

5331-00-584-9618 (5R18-12)

NIIN: 00-584-9618
In stock
NSN: 5331-00-584-9618
FSC Code: 5331
MPN: 5R1812

5331-00-663-7954 (5R20-4)

NIIN: 00-663-7954
In stock
NSN: 5331-00-663-7954
FSC Code: 5331
MPN: 5R204

5331-00-585-0389 (5R20-8)

NIIN: 00-585-0389
In stock
NSN: 5331-00-585-0389
FSC Code: 5331
MPN: 5R208

5331-01-562-0950 (223412-27)

NIIN: 01-562-0950
In stock
NSN: 5331-01-562-0950
FSC Code: 5331
MPN: 22341227

5331-00-819-2707 (5R20-3)

NIIN: 00-819-2707
In stock
NSN: 5331-00-819-2707
FSC Code: 5331
MPN: 5R203

5331-00-599-6514 (5R18-16)

NIIN: 00-599-6514
In stock
NSN: 5331-00-599-6514
FSC Code: 5331
MPN: 5R1816

5331-00-599-0069 (5R13-9)

NIIN: 00-599-0069
In stock
NSN: 5331-00-599-0069
FSC Code: 5331
MPN: 5R139

5331-01-412-4049 (2234121-40)

NIIN: 01-412-4049
In stock
NSN: 5331-01-412-4049
FSC Code: 5331
MPN: 223412140

5331-01-447-3085 (FIG.C-00349-0-8)

NIIN: 01-447-3085
In stock
NSN: 5331-01-447-3085
FSC Code: 5331
MPN: FIGC0034908

5331-01-562-0896 (223412-17)

NIIN: 01-562-0896
In stock
NSN: 5331-01-562-0896
FSC Code: 5331
MPN: 22341217

5331-01-562-0966 (223412-55)

NIIN: 01-562-0966
In stock
NSN: 5331-01-562-0966
FSC Code: 5331
MPN: 22341255

5331-01-479-3141 (223406-49)

NIIN: 01-479-3141
In stock
NSN: 5331-01-479-3141
FSC Code: 5331
MPN: 22340649

5331-01-398-7073 (223404-74)

NIIN: 01-398-7073
In stock
NSN: 5331-01-398-7073
FSC Code: 5331
MPN: 22340474

5331-01-562-0955 (223412-39)

NIIN: 01-562-0955
In stock
NSN: 5331-01-562-0955
FSC Code: 5331
MPN: 22341239

5331-00-599-0068 (5R13-7)

NIIN: 00-599-0068
In stock
NSN: 5331-00-599-0068
FSC Code: 5331
MPN: 5R137

5331-01-562-0930 (223412-22)

NIIN: 01-562-0930
In stock
NSN: 5331-01-562-0930
FSC Code: 5331
MPN: 22341222

5331-01-430-7144 (223410-08)

NIIN: 01-430-7144
In stock
NSN: 5331-01-430-7144
FSC Code: 5331
MPN: 22341008

5331-01-411-1635 (223404-70)

NIIN: 01-411-1635
In stock
NSN: 5331-01-411-1635
FSC Code: 5331
MPN: 22340470

5331-01-562-0666 (223404-05)

NIIN: 01-562-0666
In stock
NSN: 5331-01-562-0666
FSC Code: 5331
MPN: 22340405

5331-01-420-2082 (223406-5)

NIIN: 01-420-2082
In stock
NSN: 5331-01-420-2082
FSC Code: 5331
MPN: 2234065

5331-01-562-2950 (223403-60)

NIIN: 01-562-2950
In stock
NSN: 5331-01-562-2950
FSC Code: 5331
MPN: 22340360

5331-01-562-3006 (223402-04)

NIIN: 01-562-3006
In stock
NSN: 5331-01-562-3006
FSC Code: 5331
MPN: 22340204

5331-01-458-0307 (223402-54)

NIIN: 01-458-0307
In stock
NSN: 5331-01-458-0307
FSC Code: 5331
MPN: 22340254

5331-01-420-2085 (223402-11)

NIIN: 01-420-2085
In stock
NSN: 5331-01-420-2085
FSC Code: 5331
MPN: 22340211

5331-00-599-0071 (5R13-5)

NIIN: 00-599-0071
In stock
NSN: 5331-00-599-0071
FSC Code: 5331
MPN: 5R135

5331-00-584-2160 (5R13-19)

NIIN: 00-584-2160
In stock
NSN: 5331-00-584-2160
FSC Code: 5331
MPN: 5R1319

5331-00-599-0072 (5R13-13)

NIIN: 00-599-0072
In stock
NSN: 5331-00-599-0072
FSC Code: 5331
MPN: 5R1313

5331-00-514-4241 (5R13-15)

NIIN: 00-514-4241
In stock
NSN: 5331-00-514-4241
FSC Code: 5331
MPN: 5R1315

5331-01-352-1971 (2-234)

NIIN: 01-352-1971
In stock
NSN: 5331-01-352-1971
FSC Code: 5331
MPN: 2234

5331-01-383-8740 (2-233A)

NIIN: 01-383-8740
In stock
NSN: 5331-01-383-8740
FSC Code: 5331
MPN: 2233A

5331-01-443-7661 (2-234)

NIIN: 01-443-7661
In stock
NSN: 5331-01-443-7661
FSC Code: 5331
MPN: 2234

5331-01-518-8495 (2-233E515-80(PSNS))

NIIN: 01-518-8495
In stock
NSN: 5331-01-518-8495
FSC Code: 5331
MPN: 2233E51580PSNS

5331-01-372-9381 (SA-1240-C)

NIIN: 01-372-9381
In stock
NSN: 5331-01-372-9381
FSC Code: 5331
MPN: SA1240C

5331-01-441-7734 (22331605)

NIIN: 01-441-7734
In stock
NSN: 5331-01-441-7734
FSC Code: 5331
MPN: 22331605

5331-01-459-2168 (22-33070)

NIIN: 01-459-2168
In stock
NSN: 5331-01-459-2168
FSC Code: 5331
MPN: 2233070

5331-01-459-2532 (22-33074)

NIIN: 01-459-2532
In stock
NSN: 5331-01-459-2532
FSC Code: 5331
MPN: 2233074

5331-01-454-8549 (2-232-N525-60)

NIIN: 01-454-8549
In stock
NSN: 5331-01-454-8549
FSC Code: 5331
MPN: 2232N52560

5331-01-507-0287 (2-233)

NIIN: 01-507-0287
In stock
NSN: 5331-01-507-0287
FSC Code: 5331
MPN: 2233

5331-01-499-3591 (3040102)

NIIN: 01-499-3591
In stock
NSN: 5331-01-499-3591
FSC Code: 5331
MPN: 3040102

5331-01-561-7898 (2-232)

NIIN: 01-561-7898
In stock
NSN: 5331-01-561-7898
FSC Code: 5331
MPN: 2232

5331-01-522-2216 (HI-721-3100)

NIIN: 01-522-2216
In stock
NSN: 5331-01-522-2216
FSC Code: 5331
MPN: HI7213100

5331-01-523-0009 (820-2178741PC60)

NIIN: 01-523-0009
In stock
NSN: 5331-01-523-0009
FSC Code: 5331
MPN: 8202178741PC60

5331-01-437-3402 (2-230-S613-60)

NIIN: 01-437-3402
In stock
NSN: 5331-01-437-3402
FSC Code: 5331
MPN: 2230S61360

5331-01-352-1972 (2-231)

NIIN: 01-352-1972
In stock
NSN: 5331-01-352-1972
FSC Code: 5331
MPN: 2231

5331-01-526-1735 (2-230E515-80(MOD))

NIIN: 01-526-1735
In stock
NSN: 5331-01-526-1735
FSC Code: 5331
MPN: 2230E51580MOD

5331-01-560-9468 (222-V)

NIIN: 01-560-9468
In stock
NSN: 5331-01-560-9468
FSC Code: 5331
MPN: 222V

5331-01-286-1676 (5P9147)

NIIN: 01-286-1676
In stock
NSN: 5331-01-286-1676
FSC Code: 5331
MPN: 5P9147

5331-01-079-6748 (5P8942)

NIIN: 01-079-6748
In stock
NSN: 5331-01-079-6748
FSC Code: 5331
MPN: 5P8942