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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.

5331-00-291-9222 (5330-211-4)

NIIN: 00-291-9222
In stock
NSN: 5331-00-291-9222
FSC Code: 5331
MPN: 53302114

5331-00-291-3841 (5330-212-2)

NIIN: 00-291-3841
In stock
NSN: 5331-00-291-3841
FSC Code: 5331
MPN: 53302122

5331-00-297-6516 (5330-115)

NIIN: 00-297-6516
In stock
NSN: 5331-00-297-6516
FSC Code: 5331
MPN: 5330115

5331-01-244-7584 (5330-210)

NIIN: 01-244-7584
In stock
NSN: 5331-01-244-7584
FSC Code: 5331
MPN: 5330210

5331-01-308-1043 (533001PAF1408)

NIIN: 01-308-1043
In stock
NSN: 5331-01-308-1043
FSC Code: 5331
MPN: 533001PAF1408

5331-01-267-1106 (5330-006-0017)

NIIN: 01-267-1106
In stock
NSN: 5331-01-267-1106
FSC Code: 5331
MPN: 53300060017

5331-00-145-2257 (5-329V747-75)

NIIN: 00-145-2257
In stock
NSN: 5331-00-145-2257
FSC Code: 5331
MPN: 5329V74775

5331-01-399-2001 (1B2455)

NIIN: 01-399-2001
In stock
NSN: 5331-01-399-2001
FSC Code: 5331
MPN: 1B2455

5331-01-090-2337 (5327-77)

NIIN: 01-090-2337
In stock
NSN: 5331-01-090-2337
FSC Code: 5331
MPN: 532777

5331-01-229-8074 (5327-32)

NIIN: 01-229-8074
In stock
NSN: 5331-01-229-8074
FSC Code: 5331
MPN: 532732

5331-01-091-6803 (5326-77)

NIIN: 01-091-6803
In stock
NSN: 5331-01-091-6803
FSC Code: 5331
MPN: 532677

5331-01-229-8073 (5326-32)

NIIN: 01-229-8073
In stock
NSN: 5331-01-229-8073
FSC Code: 5331
MPN: 532632

5331-01-205-0024 (5325-9A)

NIIN: 01-205-0024
In stock
NSN: 5331-01-205-0024
FSC Code: 5331
MPN: 53259A

5331-01-358-0976 (1AA-20-004)

NIIN: 01-358-0976
In stock
NSN: 5331-01-358-0976
FSC Code: 5331
MPN: 1AA20004

5331-01-010-9797 (5321PC)

NIIN: 01-010-9797
In stock
NSN: 5331-01-010-9797
FSC Code: 5331
MPN: 5321PC

5331-00-531-3418 (53-200C15)

NIIN: 00-531-3418
In stock
NSN: 5331-00-531-3418
FSC Code: 5331
MPN: 53200C15

5331-01-424-8862 (19XL353558CR)

NIIN: 01-424-8862
In stock
NSN: 5331-01-424-8862
FSC Code: 5331
MPN: 19XL353558CR

5331-00-781-9977 (531346-1)

NIIN: 00-781-9977
In stock
NSN: 5331-00-781-9977
FSC Code: 5331
MPN: 5313461

5331-00-790-8765 (531345-2)

NIIN: 00-790-8765
In stock
NSN: 5331-00-790-8765
FSC Code: 5331
MPN: 5313452

5331-01-172-4643 (5313=010-6)

NIIN: 01-172-4643
In stock
NSN: 5331-01-172-4643
FSC Code: 5331
MPN: 53130106

5331-01-145-3977 (5311428A20)

NIIN: 01-145-3977
In stock
NSN: 5331-01-145-3977
FSC Code: 5331
MPN: 5311428A20

5331-01-213-5412 (5-311554)

NIIN: 01-213-5412
In stock
NSN: 5331-01-213-5412
FSC Code: 5331
MPN: 5311554

5331-00-794-2754 (5311428-10)

NIIN: 00-794-2754
In stock
NSN: 5331-00-794-2754
FSC Code: 5331
MPN: 531142810

5331-01-308-4679 (531-10091-1)

NIIN: 01-308-4679
In stock
NSN: 5331-01-308-4679
FSC Code: 5331
MPN: 531100911

5331-01-284-7871 (53100100-1)

NIIN: 01-284-7871
In stock
NSN: 5331-01-284-7871
FSC Code: 5331
MPN: 531001001

5331-01-211-0461 (5308-49)

NIIN: 01-211-0461
In stock
NSN: 5331-01-211-0461
FSC Code: 5331
MPN: 530849

5331-00-234-4860 (530-665)

NIIN: 00-234-4860
In stock
NSN: 5331-00-234-4860
FSC Code: 5331
MPN: 530665

5331-01-222-7963 (5304-99)

NIIN: 01-222-7963
In stock
NSN: 5331-01-222-7963
FSC Code: 5331
MPN: 530499

5331-01-221-9637 (5304-77)

NIIN: 01-221-9637
In stock
NSN: 5331-01-221-9637
FSC Code: 5331
MPN: 530477

5331-00-103-8341 (530-476)

NIIN: 00-103-8341
In stock
NSN: 5331-00-103-8341
FSC Code: 5331
MPN: 530476

5331-00-469-8330 (530-469)

NIIN: 00-469-8330
In stock
NSN: 5331-00-469-8330
FSC Code: 5331
MPN: 530469

5331-00-469-8331 (530-471)

NIIN: 00-469-8331
In stock
NSN: 5331-00-469-8331
FSC Code: 5331
MPN: 530471

5331-01-366-5829 (19A700127P3)

NIIN: 01-366-5829
In stock
NSN: 5331-01-366-5829
FSC Code: 5331
MPN: 19A700127P3

5331-00-103-8340 (530-466)

NIIN: 00-103-8340
In stock
NSN: 5331-00-103-8340
FSC Code: 5331
MPN: 530466

5331-00-103-8338 (530-458)

NIIN: 00-103-8338
In stock
NSN: 5331-00-103-8338
FSC Code: 5331
MPN: 530458

5331-00-081-6393 (530-430)

NIIN: 00-081-6393
In stock
NSN: 5331-00-081-6393
FSC Code: 5331
MPN: 530430

5331-01-512-5683 (422-210-040)

NIIN: 01-512-5683
In stock
NSN: 5331-01-512-5683
FSC Code: 5331
MPN: 422210040

5331-01-220-7567 (5303-59)

NIIN: 01-220-7567
In stock
NSN: 5331-01-220-7567
FSC Code: 5331
MPN: 530359

5331-01-458-5474 (19A11C06)

NIIN: 01-458-5474
In stock
NSN: 5331-01-458-5474
FSC Code: 5331
MPN: 19A11C06

5331-00-081-3986 (5303-0600)

NIIN: 00-081-3986
In stock
NSN: 5331-00-081-3986
FSC Code: 5331
MPN: 53030600

5331-00-800-7258 (5303-49)

NIIN: 00-800-7258
In stock
NSN: 5331-00-800-7258
FSC Code: 5331
MPN: 530349

5331-00-983-8737 (5302-0900)

NIIN: 00-983-8737
In stock
NSN: 5331-00-983-8737
FSC Code: 5331
MPN: 53020900

5331-01-524-0182 (199-9751)

NIIN: 01-524-0182
In stock
NSN: 5331-01-524-0182
FSC Code: 5331
MPN: 1999751

5331-00-835-2765 (5302-0800)

NIIN: 00-835-2765
In stock
NSN: 5331-00-835-2765
FSC Code: 5331
MPN: 53020800

5331-00-618-3736 (5302-0100)

NIIN: 00-618-3736
In stock
NSN: 5331-00-618-3736
FSC Code: 5331
MPN: 53020100

5331-01-526-1896 (199-9252)

NIIN: 01-526-1896
In stock
NSN: 5331-01-526-1896
FSC Code: 5331
MPN: 1999252

5331-01-208-2917 (530-10090-1)

NIIN: 01-208-2917
In stock
NSN: 5331-01-208-2917
FSC Code: 5331
MPN: 530100901

5331-01-151-8273 (530-10049-1)

NIIN: 01-151-8273
In stock
NSN: 5331-01-151-8273
FSC Code: 5331
MPN: 530100491