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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.

5331-01-610-4659 (7274144)

NIIN: 01-610-4659
In stock
NSN: 5331-01-610-4659
FSC Code: 5331
MPN: 7274144

5331-01-610-3405 (6048539)

NIIN: 01-610-3405
In stock
NSN: 5331-01-610-3405
FSC Code: 5331
MPN: 6048539

5331-01-611-2251 (429134)

NIIN: 01-611-2251
In stock
NSN: 5331-01-611-2251
FSC Code: 5331
MPN: 429134

5331-01-610-9189 (2418T14)

NIIN: 01-610-9189
In stock
NSN: 5331-01-610-9189
FSC Code: 5331
MPN: 2418T14

5331-01-610-8992 (50586300)

NIIN: 01-610-8992
In stock
NSN: 5331-01-610-8992
FSC Code: 5331
MPN: 50586300

5331-01-610-4024 (M5-2009-0607)

NIIN: 01-610-4024
In stock
NSN: 5331-01-610-4024
FSC Code: 5331
MPN: M520090607

5331-01-610-3886 (0000 156 N811)

NIIN: 01-610-3886
In stock
NSN: 5331-01-610-3886
FSC Code: 5331
MPN: 0000156N811

5331-01-610-2918 (347/22974)

NIIN: 01-610-2918
In stock
NSN: 5331-01-610-2918
FSC Code: 5331
MPN: 34722974

5331-01-610-2766 (0041964)

NIIN: 01-610-2766
In stock
NSN: 5331-01-610-2766
FSC Code: 5331
MPN: 0041964

5331-01-610-9664 (655063368)

NIIN: 01-610-9664
In stock
NSN: 5331-01-610-9664
FSC Code: 5331
MPN: 655063368

5331-01-610-9200 (28KP994)

NIIN: 01-610-9200
In stock
NSN: 5331-01-610-9200
FSC Code: 5331
MPN: 28KP994

5331-01-610-6518 (D012200-P-01ITEM55)

NIIN: 01-610-6518
In stock
NSN: 5331-01-610-6518
FSC Code: 5331
MPN: D012200P01ITEM55

5331-01-610-5430 (R910102075)

NIIN: 01-610-5430
In stock
NSN: 5331-01-610-5430
FSC Code: 5331
MPN: R910102075

5331-01-610-5435 (R909086334)

NIIN: 01-610-5435
In stock
NSN: 5331-01-610-5435
FSC Code: 5331
MPN: R909086334

5331-01-610-2074 (M83248/1-015)

NIIN: 01-610-2074
In stock
NSN: 5331-01-610-2074
FSC Code: 5331
MPN: M832481015

5331-01-610-8836 (3220-8035-0)

NIIN: 01-610-8836
In stock
NSN: 5331-01-610-8836
FSC Code: 5331
MPN: 322080350

5331-01-610-8859 (4464T239)

NIIN: 01-610-8859
In stock
NSN: 5331-01-610-8859
FSC Code: 5331
MPN: 4464T239

5331-01-610-6731 (AS568-805-120)

NIIN: 01-610-6731
In stock
NSN: 5331-01-610-6731
FSC Code: 5331
MPN: AS568805120

5331-01-610-5618 (10618288)

NIIN: 01-610-5618
In stock
NSN: 5331-01-610-5618
FSC Code: 5331
MPN: 10618288

5331-01-610-5304 (655110368)

NIIN: 01-610-5304
In stock
NSN: 5331-01-610-5304
FSC Code: 5331
MPN: 655110368

5331-01-610-9330 (3-910-C0873)

NIIN: 01-610-9330
In stock
NSN: 5331-01-610-9330
FSC Code: 5331
MPN: 3910C0873

5331-01-610-7584 (3220-8003-5)

NIIN: 01-610-7584
In stock
NSN: 5331-01-610-7584
FSC Code: 5331
MPN: 322080035

5331-01-610-3456 (1988263)

NIIN: 01-610-3456
In stock
NSN: 5331-01-610-3456
FSC Code: 5331
MPN: 1988263

5331-01-610-2600 (45294)

NIIN: 01-610-2600
In stock
NSN: 5331-01-610-2600
FSC Code: 5331
MPN: 45294

5331-01-610-2576 (45317)

NIIN: 01-610-2576
In stock
NSN: 5331-01-610-2576
FSC Code: 5331
MPN: 45317

5331-01-610-2080 (MS291513-221)

NIIN: 01-610-2080
In stock
NSN: 5331-01-610-2080
FSC Code: 5331
MPN: MS291513221

5331-01-610-1128 (R910941107)

NIIN: 01-610-1128
In stock
NSN: 5331-01-610-1128
FSC Code: 5331
MPN: R910941107

5331-01-610-5424 (N1490-90 2-132)

NIIN: 01-610-5424
In stock
NSN: 5331-01-610-5424
FSC Code: 5331
MPN: N1490902132

5331-01-610-4969 (13230E5909-01)

NIIN: 01-610-4969
In stock
NSN: 5331-01-610-4969
FSC Code: 5331
MPN: 13230E590901

5331-01-610-2770 (3E6730)

NIIN: 01-610-2770
In stock
NSN: 5331-01-610-2770
FSC Code: 5331
MPN: 3E6730

5331-01-610-2547 (MIL-R-15917-IV-BR-MILGP IT NO 50)

NIIN: 01-610-2547
In stock
NSN: 5331-01-610-2547
FSC Code: 5331
MPN: MILR15917IVBRMILGPITNO50

5331-01-610-2108 (AS3581-918)

NIIN: 01-610-2108
In stock
NSN: 5331-01-610-2108
FSC Code: 5331
MPN: AS3581918

5331-01-610-0067 (123-011-5)

NIIN: 01-610-0067
In stock
NSN: 5331-01-610-0067
FSC Code: 5331
MPN: 1230115

5331-01-609-9345 (803-7526214-19E)

NIIN: 01-609-9345
In stock
NSN: 5331-01-609-9345
FSC Code: 5331
MPN: 803752621419E

5331-01-610-5747 (9262K736)

NIIN: 01-610-5747
In stock
NSN: 5331-01-610-5747
FSC Code: 5331
MPN: 9262K736

5331-01-610-5616 (10617978)

NIIN: 01-610-5616
In stock
NSN: 5331-01-610-5616
FSC Code: 5331
MPN: 10617978

5331-01-610-5151 (AA55801-280D4)

NIIN: 01-610-5151
In stock
NSN: 5331-01-610-5151
FSC Code: 5331
MPN: AA55801280D4

5331-01-610-3306 (AS29561)

NIIN: 01-610-3306
In stock
NSN: 5331-01-610-3306
FSC Code: 5331
MPN: AS29561

5331-01-610-2001 (400382-3)

NIIN: 01-610-2001
In stock
NSN: 5331-01-610-2001
FSC Code: 5331
MPN: 4003823

5331-01-609-7363 (32-2667)

NIIN: 01-609-7363
In stock
NSN: 5331-01-609-7363
FSC Code: 5331
MPN: 322667

5331-01-610-5612 (10618700)

NIIN: 01-610-5612
In stock
NSN: 5331-01-610-5612
FSC Code: 5331
MPN: 10618700

5331-01-610-5305 (655082368)

NIIN: 01-610-5305
In stock
NSN: 5331-01-610-5305
FSC Code: 5331
MPN: 655082368

5331-01-610-3510 (4ORIN-012)

NIIN: 01-610-3510
In stock
NSN: 5331-01-610-3510
FSC Code: 5331
MPN: 4ORIN012

5331-01-610-0365 (U.3006-244)

NIIN: 01-610-0365
In stock
NSN: 5331-01-610-0365
FSC Code: 5331
MPN: U3006244

5331-01-610-2064 (AN6227B36)

NIIN: 01-610-2064
In stock
NSN: 5331-01-610-2064
FSC Code: 5331
MPN: AN6227B36

5331-01-609-7939 (009630710)

NIIN: 01-609-7939
In stock
NSN: 5331-01-609-7939
FSC Code: 5331
MPN: 009630710

5331-01-610-4178 (126-3219)

NIIN: 01-610-4178
In stock
NSN: 5331-01-610-4178
FSC Code: 5331
MPN: 1263219

5331-01-609-9842 (655129363)

NIIN: 01-609-9842
In stock
NSN: 5331-01-609-9842
FSC Code: 5331
MPN: 655129363