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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.

5331-01-480-8019 (2-05935)

NIIN: 01-480-8019
In stock
NSN: 5331-01-480-8019
FSC Code: 5331
MPN: 205935

5331-01-480-8020 (2-05938)

NIIN: 01-480-8020
In stock
NSN: 5331-01-480-8020
FSC Code: 5331
MPN: 205938

5331-15-145-2064 (205-80MM)

NIIN: 15-145-2064
In stock
NSN: 5331-15-145-2064
FSC Code: 5331
MPN: 20580MM

5331-15-145-2029 (205-80MM)

NIIN: 15-145-2029
In stock
NSN: 5331-15-145-2029
FSC Code: 5331
MPN: 20580MM

5331-01-269-9195 (5700031-066)

NIIN: 01-269-9195
In stock
NSN: 5331-01-269-9195
FSC Code: 5331
MPN: 5700031066

5331-01-269-9196 (5700031-068)

NIIN: 01-269-9196
In stock
NSN: 5331-01-269-9196
FSC Code: 5331
MPN: 5700031068

5331-01-245-1414 (5-700)

NIIN: 01-245-1414
In stock
NSN: 5331-01-245-1414
FSC Code: 5331
MPN: 5700

5331-00-598-9127 (56AX353)

NIIN: 00-598-9127
In stock
NSN: 5331-00-598-9127
FSC Code: 5331
MPN: 56AX353

5331-00-603-2372 (56AX379)

NIIN: 00-603-2372
In stock
NSN: 5331-00-603-2372
FSC Code: 5331
MPN: 56AX379

5331-00-598-9146 (56AX341)

NIIN: 00-598-9146
In stock
NSN: 5331-00-598-9146
FSC Code: 5331
MPN: 56AX341

5331-01-077-3151 (5-697N304-75)

NIIN: 01-077-3151
In stock
NSN: 5331-01-077-3151
FSC Code: 5331
MPN: 5697N30475

5331-01-367-4108 (20-5377)

NIIN: 01-367-4108
In stock
NSN: 5331-01-367-4108
FSC Code: 5331
MPN: 205377

5331-01-367-4003 (20-5375)

NIIN: 01-367-4003
In stock
NSN: 5331-01-367-4003
FSC Code: 5331
MPN: 205375

5331-01-368-1072 (20-5378)

NIIN: 01-368-1072
In stock
NSN: 5331-01-368-1072
FSC Code: 5331
MPN: 205378

5331-01-367-4109 (20-5376)

NIIN: 01-367-4109
In stock
NSN: 5331-01-367-4109
FSC Code: 5331
MPN: 205376

5331-15-145-2068 (205-300MM)

NIIN: 15-145-2068
In stock
NSN: 5331-15-145-2068
FSC Code: 5331
MPN: 205300MM

5331-15-145-2067 (205-300MM)

NIIN: 15-145-2067
In stock
NSN: 5331-15-145-2067
FSC Code: 5331
MPN: 205300MM

5331-00-375-7125 (569-6709-1190832ALT1PC14)

NIIN: 00-375-7125
In stock
NSN: 5331-00-375-7125
FSC Code: 5331
MPN: 56967091190832ALT1PC14

5331-00-483-8825 (569097-18)

NIIN: 00-483-8825
In stock
NSN: 5331-00-483-8825
FSC Code: 5331
MPN: 56909718

5331-01-232-1471 (568906-9)

NIIN: 01-232-1471
In stock
NSN: 5331-01-232-1471
FSC Code: 5331
MPN: 5689069

5331-01-231-5210 (568916-9)

NIIN: 01-231-5210
In stock
NSN: 5331-01-231-5210
FSC Code: 5331
MPN: 5689169

5331-01-277-7209 (568916-27)

NIIN: 01-277-7209
In stock
NSN: 5331-01-277-7209
FSC Code: 5331
MPN: 56891627

5331-01-119-8759 (568906-17)

NIIN: 01-119-8759
In stock
NSN: 5331-01-119-8759
FSC Code: 5331
MPN: 56890617

5331-01-133-3706 (568905-9)

NIIN: 01-133-3706
In stock
NSN: 5331-01-133-3706
FSC Code: 5331
MPN: 5689059

5331-01-322-8644 (568-458-N70R)

NIIN: 01-322-8644
In stock
NSN: 5331-01-322-8644
FSC Code: 5331
MPN: 568458N70R

5331-00-467-8329 (568-4-16709-001)

NIIN: 00-467-8329
In stock
NSN: 5331-00-467-8329
FSC Code: 5331
MPN: 568416709001

5331-01-159-8374 (568-352-434-70)

NIIN: 01-159-8374
In stock
NSN: 5331-01-159-8374
FSC Code: 5331
MPN: 56835243470

5331-01-133-4879 (5-682V377-90)

NIIN: 01-133-4879
In stock
NSN: 5331-01-133-4879
FSC Code: 5331
MPN: 5682V37790

5331-01-107-1840 (568-331S59)

NIIN: 01-107-1840
In stock
NSN: 5331-01-107-1840
FSC Code: 5331
MPN: 568331S59

5331-00-959-8002 (568278-6)

NIIN: 00-959-8002
In stock
NSN: 5331-00-959-8002
FSC Code: 5331
MPN: 5682786

5331-01-283-9223 (5-682V747-75)

NIIN: 01-283-9223
In stock
NSN: 5331-01-283-9223
FSC Code: 5331
MPN: 5682V74775

5331-01-171-6312 (568252-GS)

NIIN: 01-171-6312
In stock
NSN: 5331-01-171-6312
FSC Code: 5331
MPN: 568252GS

5331-01-282-8087 (568265-2)

NIIN: 01-282-8087
In stock
NSN: 5331-01-282-8087
FSC Code: 5331
MPN: 5682652

5331-01-231-0699 (568222-2)

NIIN: 01-231-0699
In stock
NSN: 5331-01-231-0699
FSC Code: 5331
MPN: 5682222

5331-01-231-5207 (568225-2)

NIIN: 01-231-5207
In stock
NSN: 5331-01-231-5207
FSC Code: 5331
MPN: 5682252

5331-01-200-0448 (568218-2)

NIIN: 01-200-0448
In stock
NSN: 5331-01-200-0448
FSC Code: 5331
MPN: 5682182

5331-01-206-6122 (568-217)

NIIN: 01-206-6122
In stock
NSN: 5331-01-206-6122
FSC Code: 5331
MPN: 568217

5331-00-483-3655 (568-222-18)

NIIN: 00-483-3655
In stock
NSN: 5331-00-483-3655
FSC Code: 5331
MPN: 56822218

5331-01-231-5213 (568218-21)

NIIN: 01-231-5213
In stock
NSN: 5331-01-231-5213
FSC Code: 5331
MPN: 56821821

5331-01-339-0718 (568-216)

NIIN: 01-339-0718
In stock
NSN: 5331-01-339-0718
FSC Code: 5331
MPN: 568216

5331-01-281-9011 (568216-22)

NIIN: 01-281-9011
In stock
NSN: 5331-01-281-9011
FSC Code: 5331
MPN: 56821622

5331-01-232-1472 (568216-21)

NIIN: 01-232-1472
In stock
NSN: 5331-01-232-1472
FSC Code: 5331
MPN: 56821621

5331-01-231-5209 (568216-2)

NIIN: 01-231-5209
In stock
NSN: 5331-01-231-5209
FSC Code: 5331
MPN: 5682162

5331-01-207-1503 (568216-17)

NIIN: 01-207-1503
In stock
NSN: 5331-01-207-1503
FSC Code: 5331
MPN: 56821617

5331-01-282-8088 (568123-22)

NIIN: 01-282-8088
In stock
NSN: 5331-01-282-8088
FSC Code: 5331
MPN: 56812322

5331-01-342-2545 (205-16)

NIIN: 01-342-2545
In stock
NSN: 5331-01-342-2545
FSC Code: 5331
MPN: 20516

5331-01-233-2940 (568211-21)

NIIN: 01-233-2940
In stock
NSN: 5331-01-233-2940
FSC Code: 5331
MPN: 56821121

5331-01-207-1504 (568123-17)

NIIN: 01-207-1504
In stock
NSN: 5331-01-207-1504
FSC Code: 5331
MPN: 56812317