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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.

5331-01-559-2117 (415134-001)

NIIN: 01-559-2117
In stock
NSN: 5331-01-559-2117
FSC Code: 5331
MPN: 415134001

5331-01-437-5818 (415143-5)

NIIN: 01-437-5818
In stock
NSN: 5331-01-437-5818
FSC Code: 5331
MPN: 4151435

5331-01-559-2125 (415133-001)

NIIN: 01-559-2125
In stock
NSN: 5331-01-559-2125
FSC Code: 5331
MPN: 415133001

5331-01-383-3616 (4150-5102)

NIIN: 01-383-3616
In stock
NSN: 5331-01-383-3616
FSC Code: 5331
MPN: 41505102

5331-01-351-7601 (4150-5398)

NIIN: 01-351-7601
In stock
NSN: 5331-01-351-7601
FSC Code: 5331
MPN: 41505398

5331-01-349-9404 (4150-5022)

NIIN: 01-349-9404
In stock
NSN: 5331-01-349-9404
FSC Code: 5331
MPN: 41505022

5331-01-443-6129 (4-15011-C-10)

NIIN: 01-443-6129
In stock
NSN: 5331-01-443-6129
FSC Code: 5331
MPN: 415011C10

5331-01-420-5393 (414-927-116-730-000)

NIIN: 01-420-5393
In stock
NSN: 5331-01-420-5393
FSC Code: 5331
MPN: 414927116730000

5331-00-005-0603 (8282-73114)

NIIN: 00-005-0603
In stock
NSN: 5331-00-005-0603
FSC Code: 5331
MPN: 828273114

5331-01-420-3667 (414-927-010-730-000)

NIIN: 01-420-3667
In stock
NSN: 5331-01-420-3667
FSC Code: 5331
MPN: 414927010730000

5331-01-005-9047 (8282-73124)

NIIN: 01-005-9047
In stock
NSN: 5331-01-005-9047
FSC Code: 5331
MPN: 828273124

5331-01-421-9987 (414-927-122-730-000)

NIIN: 01-421-9987
In stock
NSN: 5331-01-421-9987
FSC Code: 5331
MPN: 414927122730000

5331-01-420-5390 (414-927-220-730-000)

NIIN: 01-420-5390
In stock
NSN: 5331-01-420-5390
FSC Code: 5331
MPN: 414927220730000

5331-01-421-9996 (414-927-012-730-000)

NIIN: 01-421-9996
In stock
NSN: 5331-01-421-9996
FSC Code: 5331
MPN: 414927012730000

5331-01-420-5394 (414-927-114-730-000)

NIIN: 01-420-5394
In stock
NSN: 5331-01-420-5394
FSC Code: 5331
MPN: 414927114730000

5331-01-420-3669 (414-927-113-730-000)

NIIN: 01-420-3669
In stock
NSN: 5331-01-420-3669
FSC Code: 5331
MPN: 414927113730000

5331-01-420-5392 (414-927-011-730-000)

NIIN: 01-420-5392
In stock
NSN: 5331-01-420-5392
FSC Code: 5331
MPN: 414927011730000

5331-01-422-4977 (414-927-118-730-000)

NIIN: 01-422-4977
In stock
NSN: 5331-01-422-4977
FSC Code: 5331
MPN: 414927118730000

5331-01-491-3441 (4148T37P01)

NIIN: 01-491-3441
In stock
NSN: 5331-01-491-3441
FSC Code: 5331
MPN: 4148T37P01

5331-01-284-9734 (828/00154)

NIIN: 01-284-9734
In stock
NSN: 5331-01-284-9734
FSC Code: 5331
MPN: 82800154

5331-01-284-7875 (828/00155)

NIIN: 01-284-7875
In stock
NSN: 5331-01-284-7875
FSC Code: 5331
MPN: 82800155

5331-00-844-3217 (8278-70116)

NIIN: 00-844-3217
In stock
NSN: 5331-00-844-3217
FSC Code: 5331
MPN: 827870116

5331-01-154-9457 (82-74-85)

NIIN: 01-154-9457
In stock
NSN: 5331-01-154-9457
FSC Code: 5331
MPN: 827485

5331-01-154-9458 (82-74-98)

NIIN: 01-154-9458
In stock
NSN: 5331-01-154-9458
FSC Code: 5331
MPN: 827498

5331-01-270-1265 (8-274)

NIIN: 01-270-1265
In stock
NSN: 5331-01-270-1265
FSC Code: 5331
MPN: 8274

5331-01-011-9656 (82730-230)

NIIN: 01-011-9656
In stock
NSN: 5331-01-011-9656
FSC Code: 5331
MPN: 82730230

5331-01-465-9610 (414193-25)

NIIN: 01-465-9610
In stock
NSN: 5331-01-465-9610
FSC Code: 5331
MPN: 41419325

5331-01-416-5593 (4142-32)

NIIN: 01-416-5593
In stock
NSN: 5331-01-416-5593
FSC Code: 5331
MPN: 414232

5331-01-270-2737 (8-271)

NIIN: 01-270-2737
In stock
NSN: 5331-01-270-2737
FSC Code: 5331
MPN: 8271

5331-01-282-4711 (826-O)

NIIN: 01-282-4711
In stock
NSN: 5331-01-282-4711
FSC Code: 5331
MPN: 826O

5331-01-526-1632 (41361-68)

NIIN: 01-526-1632
In stock
NSN: 5331-01-526-1632
FSC Code: 5331
MPN: 4136168

5331-01-330-9623 (826502-242)

NIIN: 01-330-9623
In stock
NSN: 5331-01-330-9623
FSC Code: 5331
MPN: 826502242

5331-01-322-2839 (826502-247)

NIIN: 01-322-2839
In stock
NSN: 5331-01-322-2839
FSC Code: 5331
MPN: 826502247

5331-01-061-3004 (826502-244)

NIIN: 01-061-3004
In stock
NSN: 5331-01-061-3004
FSC Code: 5331
MPN: 826502244

5331-01-063-3803 (826502-259)

NIIN: 01-063-3803
In stock
NSN: 5331-01-063-3803
FSC Code: 5331
MPN: 826502259

5331-01-061-3003 (826502-240)

NIIN: 01-061-3003
In stock
NSN: 5331-01-061-3003
FSC Code: 5331
MPN: 826502240

5331-01-326-2901 (826502-255)

NIIN: 01-326-2901
In stock
NSN: 5331-01-326-2901
FSC Code: 5331
MPN: 826502255

5331-01-278-1751 (826502-156)

NIIN: 01-278-1751
In stock
NSN: 5331-01-278-1751
FSC Code: 5331
MPN: 826502156

5331-01-277-6132 (826502-036)

NIIN: 01-277-6132
In stock
NSN: 5331-01-277-6132
FSC Code: 5331
MPN: 826502036

5331-01-334-3651 (82650-1)

NIIN: 01-334-3651
In stock
NSN: 5331-01-334-3651
FSC Code: 5331
MPN: 826501

5331-01-336-5357 (82634-3)

NIIN: 01-336-5357
In stock
NSN: 5331-01-336-5357
FSC Code: 5331
MPN: 826343

5331-01-335-0041 (82634-2)

NIIN: 01-335-0041
In stock
NSN: 5331-01-335-0041
FSC Code: 5331
MPN: 826342

5331-01-264-9152 (826244-7)

NIIN: 01-264-9152
In stock
NSN: 5331-01-264-9152
FSC Code: 5331
MPN: 8262447

5331-01-264-9151 (826244-4)

NIIN: 01-264-9151
In stock
NSN: 5331-01-264-9151
FSC Code: 5331
MPN: 8262444

5331-01-295-1018 (826102-243)

NIIN: 01-295-1018
In stock
NSN: 5331-01-295-1018
FSC Code: 5331
MPN: 826102243

5331-01-272-8266 (826/02-329)

NIIN: 01-272-8266
In stock
NSN: 5331-01-272-8266
FSC Code: 5331
MPN: 82602329

5331-01-061-3002 (826102-113)

NIIN: 01-061-3002
In stock
NSN: 5331-01-061-3002
FSC Code: 5331
MPN: 826102113

5331-01-028-4452 (82560-24)

NIIN: 01-028-4452
In stock
NSN: 5331-01-028-4452
FSC Code: 5331
MPN: 8256024