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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.

5331-01-587-7675 (14KP918)

NIIN: 01-587-7675
In stock
NSN: 5331-01-587-7675
FSC Code: 5331
MPN: 14KP918

5331-01-588-2720 (S9553-CH-MMO-010 FIG 7-35-4 CP)

NIIN: 01-588-2720
In stock
NSN: 5331-01-588-2720
FSC Code: 5331
MPN: S9553CHMMO010FIG7354CP

5331-01-588-6246 (131226170)

NIIN: 01-588-6246
In stock
NSN: 5331-01-588-6246
FSC Code: 5331
MPN: 131226170

5331-01-588-1576 (F4003-08)

NIIN: 01-588-1576
In stock
NSN: 5331-01-588-1576
FSC Code: 5331
MPN: F400308

5331-01-588-0343 (P-12642)

NIIN: 01-588-0343
In stock
NSN: 5331-01-588-0343
FSC Code: 5331
MPN: P12642

5331-01-587-7325 (2531613)

NIIN: 01-587-7325
In stock
NSN: 5331-01-587-7325
FSC Code: 5331
MPN: 2531613

5331-01-587-7042 (238-5082)

NIIN: 01-587-7042
In stock
NSN: 5331-01-587-7042
FSC Code: 5331
MPN: 2385082

5331-01-587-7078 (266-3670)

NIIN: 01-587-7078
In stock
NSN: 5331-01-587-7078
FSC Code: 5331
MPN: 2663670

5331-01-588-5097 (601017-4)

NIIN: 01-588-5097
In stock
NSN: 5331-01-588-5097
FSC Code: 5331
MPN: 6010174

5331-01-588-4644 (2-105-N0602-70)

NIIN: 01-588-4644
In stock
NSN: 5331-01-588-4644
FSC Code: 5331
MPN: 2105N060270

5331-01-588-4046 (109548)

NIIN: 01-588-4046
In stock
NSN: 5331-01-588-4046
FSC Code: 5331
MPN: 109548

5331-01-588-3978 (94115K018)

NIIN: 01-588-3978
In stock
NSN: 5331-01-588-3978
FSC Code: 5331
MPN: 94115K018

5331-01-587-8959 (58652-00)

NIIN: 01-587-8959
In stock
NSN: 5331-01-587-8959
FSC Code: 5331
MPN: 5865200

5331-01-587-7976 (PM-4963-AZ)

NIIN: 01-587-7976
In stock
NSN: 5331-01-587-7976
FSC Code: 5331
MPN: PM4963AZ

5331-01-587-7616 (535720-9010)

NIIN: 01-587-7616
In stock
NSN: 5331-01-587-7616
FSC Code: 5331
MPN: 5357209010

5331-01-587-7526 (3975683)

NIIN: 01-587-7526
In stock
NSN: 5331-01-587-7526
FSC Code: 5331
MPN: 3975683

5331-01-587-6264 (937-00250-0125)

NIIN: 01-587-6264
In stock
NSN: 5331-01-587-6264
FSC Code: 5331
MPN: 937002500125

5331-01-587-5906 (AS3209-37)

NIIN: 01-587-5906
In stock
NSN: 5331-01-587-5906
FSC Code: 5331
MPN: AS320937

5331-01-587-4554 (2604177C1)

NIIN: 01-587-4554
In stock
NSN: 5331-01-587-4554
FSC Code: 5331
MPN: 2604177C1

5331-01-587-4501 (2602739C1)

NIIN: 01-587-4501
In stock
NSN: 5331-01-587-4501
FSC Code: 5331
MPN: 2602739C1

5331-01-588-4122 (00-658)

NIIN: 01-588-4122
In stock
NSN: 5331-01-588-4122
FSC Code: 5331
MPN: 00658

5331-01-588-2132 (3907N-7)

NIIN: 01-588-2132
In stock
NSN: 5331-01-588-2132
FSC Code: 5331
MPN: 3907N7

5331-01-588-1584 (F4003-16)

NIIN: 01-588-1584
In stock
NSN: 5331-01-588-1584
FSC Code: 5331
MPN: F400316

5331-01-588-0692 (146-4263)

NIIN: 01-588-0692
In stock
NSN: 5331-01-588-0692
FSC Code: 5331
MPN: 1464263

5331-01-588-0451 (EC091033)

NIIN: 01-588-0451
In stock
NSN: 5331-01-588-0451
FSC Code: 5331
MPN: EC091033

5331-01-587-8285 (2415H003)

NIIN: 01-587-8285
In stock
NSN: 5331-01-587-8285
FSC Code: 5331
MPN: 2415H003

5331-01-587-6266 (937-00250-0008)

NIIN: 01-587-6266
In stock
NSN: 5331-01-587-6266
FSC Code: 5331
MPN: 937002500008

5331-01-588-3664 (2415787)

NIIN: 01-588-3664
In stock
NSN: 5331-01-588-3664
FSC Code: 5331
MPN: 2415787

5331-01-588-1580 (12663079 F4003-12)

NIIN: 01-588-1580
In stock
NSN: 5331-01-588-1580
FSC Code: 5331
MPN: 12663079F400312

5331-01-588-0694 (177-6797)

NIIN: 01-588-0694
In stock
NSN: 5331-01-588-0694
FSC Code: 5331
MPN: 1776797

5331-01-587-7574 (5267T22)

NIIN: 01-587-7574
In stock
NSN: 5331-01-587-7574
FSC Code: 5331
MPN: 5267T22

5331-01-587-6514 (6Y-5888)

NIIN: 01-587-6514
In stock
NSN: 5331-01-587-6514
FSC Code: 5331
MPN: 6Y5888

5331-01-587-4092 (GM42275)

NIIN: 01-587-4092
In stock
NSN: 5331-01-587-4092
FSC Code: 5331
MPN: GM42275

5331-01-588-0806 (269-9158)

NIIN: 01-588-0806
In stock
NSN: 5331-01-588-0806
FSC Code: 5331
MPN: 2699158

5331-01-587-4616 (22322919)

NIIN: 01-587-4616
In stock
NSN: 5331-01-587-4616
FSC Code: 5331
MPN: 22322919

5331-01-587-8292 (2415H001)

NIIN: 01-587-8292
In stock
NSN: 5331-01-587-8292
FSC Code: 5331
MPN: 2415H001

5331-01-587-7079 (266-3675)

NIIN: 01-587-7079
In stock
NSN: 5331-01-587-7079
FSC Code: 5331
MPN: 2663675

5331-01-587-3817 (187-6108)

NIIN: 01-587-3817
In stock
NSN: 5331-01-587-3817
FSC Code: 5331
MPN: 1876108

5331-01-587-2917 (1714)

NIIN: 01-587-2917
In stock
NSN: 5331-01-587-2917
FSC Code: 5331
MPN: 1714

5331-01-586-8945 (35027)

NIIN: 01-586-8945
In stock
NSN: 5331-01-586-8945
FSC Code: 5331
MPN: 35027

5331-01-587-1479 (GW1277-01)

NIIN: 01-587-1479
In stock
NSN: 5331-01-587-1479
FSC Code: 5331
MPN: GW127701

5331-01-586-9204 (PRH-10007)

NIIN: 01-586-9204
In stock
NSN: 5331-01-586-9204
FSC Code: 5331
MPN: PRH10007

5331-01-586-8980 (804530)

NIIN: 01-586-8980
In stock
NSN: 5331-01-586-8980
FSC Code: 5331
MPN: 804530

5331-01-586-8062 (804529)

NIIN: 01-586-8062
In stock
NSN: 5331-01-586-8062
FSC Code: 5331
MPN: 804529

5331-01-587-6168 (9X-7410)

NIIN: 01-587-6168
In stock
NSN: 5331-01-587-6168
FSC Code: 5331
MPN: 9X7410

5331-01-587-6113 (129-1610)

NIIN: 01-587-6113
In stock
NSN: 5331-01-587-6113
FSC Code: 5331
MPN: 1291610

5331-01-587-2701 (525-019)

NIIN: 01-587-2701
In stock
NSN: 5331-01-587-2701
FSC Code: 5331
MPN: 525019

5331-01-586-8081 (896522)

NIIN: 01-586-8081
In stock
NSN: 5331-01-586-8081
FSC Code: 5331
MPN: 896522