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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.

5331-01-587-1318 (3163713)

NIIN: 01-587-1318
In stock
NSN: 5331-01-587-1318
FSC Code: 5331
MPN: 3163713

5331-01-586-9969 (A6195891-2)

NIIN: 01-586-9969
In stock
NSN: 5331-01-586-9969
FSC Code: 5331
MPN: A61958912

5331-01-586-8099 (896524)

NIIN: 01-586-8099
In stock
NSN: 5331-01-586-8099
FSC Code: 5331
MPN: 896524

5331-01-586-8076 (25-62702 1)

NIIN: 01-586-8076
In stock
NSN: 5331-01-586-8076
FSC Code: 5331
MPN: 25627021

5331-01-586-8038 (823683)

NIIN: 01-586-8038
In stock
NSN: 5331-01-586-8038
FSC Code: 5331
MPN: 823683

5331-01-586-6434 (AS-568B-011-70FS)

NIIN: 01-586-6434
In stock
NSN: 5331-01-586-6434
FSC Code: 5331
MPN: AS568B01170FS

5331-01-586-5855 (00081659N)

NIIN: 01-586-5855
In stock
NSN: 5331-01-586-5855
FSC Code: 5331
MPN: 00081659N

5331-01-586-5543 (S9553-CH-MMO-010 FIG 7-6-110)

NIIN: 01-586-5543
In stock
NSN: 5331-01-586-5543
FSC Code: 5331
MPN: S9553CHMMO010FIG76110

5331-01-586-4316 (509-0414)

NIIN: 01-586-4316
In stock
NSN: 5331-01-586-4316
FSC Code: 5331
MPN: 5090414

5331-01-587-1405 (2-225 N0552)

NIIN: 01-587-1405
In stock
NSN: 5331-01-587-1405
FSC Code: 5331
MPN: 2225N0552

5331-01-587-0758 (359976)

NIIN: 01-587-0758
In stock
NSN: 5331-01-587-0758
FSC Code: 5331
MPN: 359976

5331-01-586-8967 (30641)

NIIN: 01-586-8967
In stock
NSN: 5331-01-586-8967
FSC Code: 5331
MPN: 30641

5331-01-586-4301 (749392-12)

NIIN: 01-586-4301
In stock
NSN: 5331-01-586-4301
FSC Code: 5331
MPN: 74939212

5331-01-587-2007 (298-6387)

NIIN: 01-587-2007
In stock
NSN: 5331-01-587-2007
FSC Code: 5331
MPN: 2986387

5331-01-587-1836 (19KP409)

NIIN: 01-587-1836
In stock
NSN: 5331-01-587-1836
FSC Code: 5331
MPN: 19KP409

5331-01-586-8129 (832804A03)

NIIN: 01-586-8129
In stock
NSN: 5331-01-586-8129
FSC Code: 5331
MPN: 832804A03

5331-01-586-7946 (33504)

NIIN: 01-586-7946
In stock
NSN: 5331-01-586-7946
FSC Code: 5331
MPN: 33504

5331-01-586-5195 (797075-1)

NIIN: 01-586-5195
In stock
NSN: 5331-01-586-5195
FSC Code: 5331
MPN: 7970751

5331-01-586-4044 (6297E37-ITEM12)

NIIN: 01-586-4044
In stock
NSN: 5331-01-586-4044
FSC Code: 5331
MPN: 6297E37ITEM12

5331-01-586-3713 (2550-3102)

NIIN: 01-586-3713
In stock
NSN: 5331-01-586-3713
FSC Code: 5331
MPN: 25503102

5331-01-586-9039 (891778)

NIIN: 01-586-9039
In stock
NSN: 5331-01-586-9039
FSC Code: 5331
MPN: 891778

5331-01-586-8953 (1583636-50)

NIIN: 01-586-8953
In stock
NSN: 5331-01-586-8953
FSC Code: 5331
MPN: 158363650

5331-01-586-8331 (D084-1029CP)

NIIN: 01-586-8331
In stock
NSN: 5331-01-586-8331
FSC Code: 5331
MPN: D0841029CP

5331-01-586-8196 (35126)

NIIN: 01-586-8196
In stock
NSN: 5331-01-586-8196
FSC Code: 5331
MPN: 35126

5331-01-586-8125 (832804)

NIIN: 01-586-8125
In stock
NSN: 5331-01-586-8125
FSC Code: 5331
MPN: 832804

5331-01-586-8113 (89224001)

NIIN: 01-586-8113
In stock
NSN: 5331-01-586-8113
FSC Code: 5331
MPN: 89224001

5331-01-586-7930 (896699)

NIIN: 01-586-7930
In stock
NSN: 5331-01-586-7930
FSC Code: 5331
MPN: 896699

5331-01-586-4293 (749392-8)

NIIN: 01-586-4293
In stock
NSN: 5331-01-586-4293
FSC Code: 5331
MPN: 7493928

5331-01-586-8077 (21836)

NIIN: 01-586-8077
In stock
NSN: 5331-01-586-8077
FSC Code: 5331
MPN: 21836

5331-01-586-7876 (7021451-301)

NIIN: 01-586-7876
In stock
NSN: 5331-01-586-7876
FSC Code: 5331
MPN: 7021451301

5331-01-586-5039 (DS5701-122)

NIIN: 01-586-5039
In stock
NSN: 5331-01-586-5039
FSC Code: 5331
MPN: DS5701122

5331-01-586-4537 (Y49081-904 OXYGEN CLEAN)

NIIN: 01-586-4537
In stock
NSN: 5331-01-586-4537
FSC Code: 5331
MPN: Y49081904OXYGENCLEAN

5331-01-586-4439 (5P-4268)

NIIN: 01-586-4439
In stock
NSN: 5331-01-586-4439
FSC Code: 5331
MPN: 5P4268

5331-01-586-4294 (749392-9)

NIIN: 01-586-4294
In stock
NSN: 5331-01-586-4294
FSC Code: 5331
MPN: 7493929

5331-01-586-4077 (6297E37-ITEM13)

NIIN: 01-586-4077
In stock
NSN: 5331-01-586-4077
FSC Code: 5331
MPN: 6297E37ITEM13

5331-01-586-3149 (DS5701-010)

NIIN: 01-586-3149
In stock
NSN: 5331-01-586-3149
FSC Code: 5331
MPN: DS5701010

5331-01-586-3147 (DS5701-009)

NIIN: 01-586-3147
In stock
NSN: 5331-01-586-3147
FSC Code: 5331
MPN: DS5701009

5331-01-586-2923 (019350400)

NIIN: 01-586-2923
In stock
NSN: 5331-01-586-2923
FSC Code: 5331
MPN: 019350400

5331-01-586-0579 (04-05-08)

NIIN: 01-586-0579
In stock
NSN: 5331-01-586-0579
FSC Code: 5331
MPN: 040508

5331-01-585-9842 (S211-332)

NIIN: 01-585-9842
In stock
NSN: 5331-01-585-9842
FSC Code: 5331
MPN: S211332

5331-01-585-9580 (3163714)

NIIN: 01-585-9580
In stock
NSN: 5331-01-585-9580
FSC Code: 5331
MPN: 3163714

5331-01-585-6560 (503-4802)

NIIN: 01-585-6560
In stock
NSN: 5331-01-585-6560
FSC Code: 5331
MPN: 5034802

5331-01-586-4548 (Y49081-916 OXYGEN CLEAN)

NIIN: 01-586-4548
In stock
NSN: 5331-01-586-4548
FSC Code: 5331
MPN: Y49081916OXYGENCLEAN

5331-01-586-4082 (6297E68-ITEM3)

NIIN: 01-586-4082
In stock
NSN: 5331-01-586-4082
FSC Code: 5331
MPN: 6297E68ITEM3

5331-01-585-6876 (22610-20)

NIIN: 01-585-6876
In stock
NSN: 5331-01-585-6876
FSC Code: 5331
MPN: 2261020

5331-01-586-4531 (Y49081-032 OXYGEN CLEAN)

NIIN: 01-586-4531
In stock
NSN: 5331-01-586-4531
FSC Code: 5331
MPN: Y49081032OXYGENCLEAN

5331-01-586-4542 (Y49081-912 OXYGEN CLEAN)

NIIN: 01-586-4542
In stock
NSN: 5331-01-586-4542
FSC Code: 5331
MPN: Y49081912OXYGENCLEAN

5331-01-586-3818 (39644991)

NIIN: 01-586-3818
In stock
NSN: 5331-01-586-3818
FSC Code: 5331
MPN: 39644991