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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.

5331-01-582-2978 (1005449)

NIIN: 01-582-2978
In stock
NSN: 5331-01-582-2978
FSC Code: 5331
MPN: 1005449

5331-01-582-2858 (401017)

NIIN: 01-582-2858
In stock
NSN: 5331-01-582-2858
FSC Code: 5331
MPN: 401017

5331-01-582-3760 (1375-320)

NIIN: 01-582-3760
In stock
NSN: 5331-01-582-3760
FSC Code: 5331
MPN: 1375320

5331-01-582-3774 (2KK835)

NIIN: 01-582-3774
In stock
NSN: 5331-01-582-3774
FSC Code: 5331
MPN: 2KK835

5331-01-582-1888 (410-13689)

NIIN: 01-582-1888
In stock
NSN: 5331-01-582-1888
FSC Code: 5331
MPN: 41013689

5331-01-582-1103 (25-20385)

NIIN: 01-582-1103
In stock
NSN: 5331-01-582-1103
FSC Code: 5331
MPN: 2520385

5331-01-581-9446 (2-013E515-80CP)

NIIN: 01-581-9446
In stock
NSN: 5331-01-581-9446
FSC Code: 5331
MPN: 2013E51580CP

5331-01-581-8219 (1840751C92)

NIIN: 01-581-8219
In stock
NSN: 5331-01-581-8219
FSC Code: 5331
MPN: 1840751C92

5331-01-582-6136 (PM 2009 BQ)

NIIN: 01-582-6136
In stock
NSN: 5331-01-582-6136
FSC Code: 5331
MPN: PM2009BQ

5331-01-582-0283 (25-89224)

NIIN: 01-582-0283
In stock
NSN: 5331-01-582-0283
FSC Code: 5331
MPN: 2589224

5331-01-582-2199 (68620377-1)

NIIN: 01-582-2199
In stock
NSN: 5331-01-582-2199
FSC Code: 5331
MPN: 686203771

5331-01-582-2143 (AS568A-356)

NIIN: 01-582-2143
In stock
NSN: 5331-01-582-2143
FSC Code: 5331
MPN: AS568A356

5331-01-582-2138 (2-110 N70)

NIIN: 01-582-2138
In stock
NSN: 5331-01-582-2138
FSC Code: 5331
MPN: 2110N70

5331-01-581-8914 (101-30600)

NIIN: 01-581-8914
In stock
NSN: 5331-01-581-8914
FSC Code: 5331
MPN: 10130600

5331-01-581-7240 (1618068)

NIIN: 01-581-7240
In stock
NSN: 5331-01-581-7240
FSC Code: 5331
MPN: 1618068

5331-01-581-6894 (6-198)

NIIN: 01-581-6894
In stock
NSN: 5331-01-581-6894
FSC Code: 5331
MPN: 6198

5331-01-581-5576 (4400571-0080)

NIIN: 01-581-5576
In stock
NSN: 5331-01-581-5576
FSC Code: 5331
MPN: 44005710080

5331-01-581-6893 (5-159)

NIIN: 01-581-6893
In stock
NSN: 5331-01-581-6893
FSC Code: 5331
MPN: 5159

5331-01-581-5034 (14KP828)

NIIN: 01-581-5034
In stock
NSN: 5331-01-581-5034
FSC Code: 5331
MPN: 14KP828

5331-01-581-3087 (116620)

NIIN: 01-581-3087
In stock
NSN: 5331-01-581-3087
FSC Code: 5331
MPN: 116620

5331-01-582-0340 (154B3021)

NIIN: 01-582-0340
In stock
NSN: 5331-01-582-0340
FSC Code: 5331
MPN: 154B3021

5331-01-581-6890 (2-044)

NIIN: 01-581-6890
In stock
NSN: 5331-01-581-6890
FSC Code: 5331
MPN: 2044

5331-01-581-6283 (R909085560)

NIIN: 01-581-6283
In stock
NSN: 5331-01-581-6283
FSC Code: 5331
MPN: R909085560

5331-01-581-5856 (YA-5739-15)

NIIN: 01-581-5856
In stock
NSN: 5331-01-581-5856
FSC Code: 5331
MPN: YA573915

5331-01-581-5148 (18KP577)

NIIN: 01-581-5148
In stock
NSN: 5331-01-581-5148
FSC Code: 5331
MPN: 18KP577

5331-01-581-3222 (116621)

NIIN: 01-581-3222
In stock
NSN: 5331-01-581-3222
FSC Code: 5331
MPN: 116621

5331-01-581-2986 (410-14938)

NIIN: 01-581-2986
In stock
NSN: 5331-01-581-2986
FSC Code: 5331
MPN: 41014938

5331-01-581-2148 (OK-S)

NIIN: 01-581-2148
In stock
NSN: 5331-01-581-2148
FSC Code: 5331
MPN: OKS

5331-01-581-1288 (ZMSCE70039)

NIIN: 01-581-1288
In stock
NSN: 5331-01-581-1288
FSC Code: 5331
MPN: ZMSCE70039

5331-01-580-9933 (675C-10209)

NIIN: 01-580-9933
In stock
NSN: 5331-01-580-9933
FSC Code: 5331
MPN: 675C10209

5331-01-580-9364 (M83461/1-284)

NIIN: 01-580-9364
In stock
NSN: 5331-01-580-9364
FSC Code: 5331
MPN: M834611284

5331-01-581-7325 (2506277C1)

NIIN: 01-581-7325
In stock
NSN: 5331-01-581-7325
FSC Code: 5331
MPN: 2506277C1

5331-01-581-1606 (M25988/1-206)

NIIN: 01-581-1606
In stock
NSN: 5331-01-581-1606
FSC Code: 5331
MPN: M259881206

5331-01-581-9091 (PH 3916N0552)

NIIN: 01-581-9091
In stock
NSN: 5331-01-581-9091
FSC Code: 5331
MPN: PH3916N0552

5331-01-581-6784 (R909154053)

NIIN: 01-581-6784
In stock
NSN: 5331-01-581-6784
FSC Code: 5331
MPN: R909154053

5331-01-581-0447 (423517)

NIIN: 01-581-0447
In stock
NSN: 5331-01-581-0447
FSC Code: 5331
MPN: 423517

5331-01-581-2847 (AS3208-7)

NIIN: 01-581-2847
In stock
NSN: 5331-01-581-2847
FSC Code: 5331
MPN: AS32087

5331-01-581-2234 (97386)

NIIN: 01-581-2234
In stock
NSN: 5331-01-581-2234
FSC Code: 5331
MPN: 97386

5331-01-581-1320 (013)

NIIN: 01-581-1320
In stock
NSN: 5331-01-581-1320
FSC Code: 5331
MPN: 013

5331-01-581-1044 (2110404)

NIIN: 01-581-1044
In stock
NSN: 5331-01-581-1044
FSC Code: 5331
MPN: 2110404

5331-01-581-0657 (894157-8850)

NIIN: 01-581-0657
In stock
NSN: 5331-01-581-0657
FSC Code: 5331
MPN: 8941578850

5331-01-581-8890 (158)

NIIN: 01-581-8890
In stock
NSN: 5331-01-581-8890
FSC Code: 5331
MPN: 158

5331-01-581-8266 (5-13-7746-1)

NIIN: 01-581-8266
In stock
NSN: 5331-01-581-8266
FSC Code: 5331
MPN: 51377461

5331-01-581-8220 (2661058A112)

NIIN: 01-581-8220
In stock
NSN: 5331-01-581-8220
FSC Code: 5331
MPN: 2661058A112

5331-01-581-6866 (R909087938)

NIIN: 01-581-6866
In stock
NSN: 5331-01-581-6866
FSC Code: 5331
MPN: R909087938

5331-01-581-3935 (AS3581-207)

NIIN: 01-581-3935
In stock
NSN: 5331-01-581-3935
FSC Code: 5331
MPN: AS3581207

5331-01-581-1295 (25-855423)

NIIN: 01-581-1295
In stock
NSN: 5331-01-581-1295
FSC Code: 5331
MPN: 25855423

5331-01-580-9853 (10012553)

NIIN: 01-580-9853
In stock
NSN: 5331-01-580-9853
FSC Code: 5331
MPN: 10012553