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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.

5331-00-081-6062 (AS3582-429)

NIIN: 00-081-6062
In stock
NSN: 5331-00-081-6062
FSC Code: 5331
MPN: AS3582429

5331-00-145-2214 (AS3582-348)

NIIN: 00-145-2214
In stock
NSN: 5331-00-145-2214
FSC Code: 5331
MPN: AS3582348

5331-00-466-2755 (AS3582-341)

NIIN: 00-466-2755
In stock
NSN: 5331-00-466-2755
FSC Code: 5331
MPN: AS3582341

5331-00-814-0796 (AS3582-256)

NIIN: 00-814-0796
In stock
NSN: 5331-00-814-0796
FSC Code: 5331
MPN: AS3582256

5331-00-497-1247 (AS3582-261)

NIIN: 00-497-1247
In stock
NSN: 5331-00-497-1247
FSC Code: 5331
MPN: AS3582261

5331-00-924-7758 (AS3582-271)

NIIN: 00-924-7758
In stock
NSN: 5331-00-924-7758
FSC Code: 5331
MPN: AS3582271

5331-00-949-5494 (AS3582-253)

NIIN: 00-949-5494
In stock
NSN: 5331-00-949-5494
FSC Code: 5331
MPN: AS3582253

5331-01-165-7581 (AS3582-336)

NIIN: 01-165-7581
In stock
NSN: 5331-01-165-7581
FSC Code: 5331
MPN: AS3582336

5331-00-935-9261 (AS3582-279)

NIIN: 00-935-9261
In stock
NSN: 5331-00-935-9261
FSC Code: 5331
MPN: AS3582279

5331-00-943-2062 (AS3582-339)

NIIN: 00-943-2062
In stock
NSN: 5331-00-943-2062
FSC Code: 5331
MPN: AS3582339

5331-00-935-9260 (AS3582-280)

NIIN: 00-935-9260
In stock
NSN: 5331-00-935-9260
FSC Code: 5331
MPN: AS3582280

5331-01-173-1118 (AS3582-338)

NIIN: 01-173-1118
In stock
NSN: 5331-01-173-1118
FSC Code: 5331
MPN: AS3582338

5331-00-113-8399 (AS3582-329)

NIIN: 00-113-8399
In stock
NSN: 5331-00-113-8399
FSC Code: 5331
MPN: AS3582329

5331-00-926-4075 (AS3582-270)

NIIN: 00-926-4075
In stock
NSN: 5331-00-926-4075
FSC Code: 5331
MPN: AS3582270

5331-01-168-7261 (AS3582-262)

NIIN: 01-168-7261
In stock
NSN: 5331-01-168-7261
FSC Code: 5331
MPN: AS3582262

5331-00-849-6735 (AS3582-264)

NIIN: 00-849-6735
In stock
NSN: 5331-00-849-6735
FSC Code: 5331
MPN: AS3582264

5331-01-267-9310 (AS3582-276)

NIIN: 01-267-9310
In stock
NSN: 5331-01-267-9310
FSC Code: 5331
MPN: AS3582276

5331-00-143-7150 (AS3582-274)

NIIN: 00-143-7150
In stock
NSN: 5331-00-143-7150
FSC Code: 5331
MPN: AS3582274

5331-00-113-3806 (AS3582-275)

NIIN: 00-113-3806
In stock
NSN: 5331-00-113-3806
FSC Code: 5331
MPN: AS3582275

5331-00-949-9287 (AS3582-247)

NIIN: 00-949-9287
In stock
NSN: 5331-00-949-9287
FSC Code: 5331
MPN: AS3582247

5331-00-849-6726 (AS3582-251)

NIIN: 00-849-6726
In stock
NSN: 5331-00-849-6726
FSC Code: 5331
MPN: AS3582251

5331-00-926-9331 (AS3582-244)

NIIN: 00-926-9331
In stock
NSN: 5331-00-926-9331
FSC Code: 5331
MPN: AS3582244

5331-00-113-3805 (AS3582-252)

NIIN: 00-113-3805
In stock
NSN: 5331-00-113-3805
FSC Code: 5331
MPN: AS3582252

5331-01-012-3816 (AS3582-229)

NIIN: 01-012-3816
In stock
NSN: 5331-01-012-3816
FSC Code: 5331
MPN: AS3582229

5331-00-558-1330 (AS3582-147)

NIIN: 00-558-1330
In stock
NSN: 5331-00-558-1330
FSC Code: 5331
MPN: AS3582147

5331-00-167-5170 (AS3581-329)

NIIN: 00-167-5170
In stock
NSN: 5331-00-167-5170
FSC Code: 5331
MPN: AS3581329

5331-00-782-9394 (AS3582-128)

NIIN: 00-782-9394
In stock
NSN: 5331-00-782-9394
FSC Code: 5331
MPN: AS3582128

5331-00-460-8310 (AS3582-032)

NIIN: 00-460-8310
In stock
NSN: 5331-00-460-8310
FSC Code: 5331
MPN: AS3582032

5331-00-849-8352 (AS3582-131)

NIIN: 00-849-8352
In stock
NSN: 5331-00-849-8352
FSC Code: 5331
MPN: AS3582131

5331-01-043-1905 (AS3581-386)

NIIN: 01-043-1905
In stock
NSN: 5331-01-043-1905
FSC Code: 5331
MPN: AS3581386

5331-00-849-6711 (AS3582-141)

NIIN: 00-849-6711
In stock
NSN: 5331-00-849-6711
FSC Code: 5331
MPN: AS3582141

5331-01-305-0238 (AS3581-272)

NIIN: 01-305-0238
In stock
NSN: 5331-01-305-0238
FSC Code: 5331
MPN: AS3581272

5331-01-255-0146 (AS3581-447)

NIIN: 01-255-0146
In stock
NSN: 5331-01-255-0146
FSC Code: 5331
MPN: AS3581447

5331-01-304-9500 (AS3581-455)

NIIN: 01-304-9500
In stock
NSN: 5331-01-304-9500
FSC Code: 5331
MPN: AS3581455

5331-01-183-9169 (AS3581-330)

NIIN: 01-183-9169
In stock
NSN: 5331-01-183-9169
FSC Code: 5331
MPN: AS3581330

5331-00-913-6058 (AS3581-157)

NIIN: 00-913-6058
In stock
NSN: 5331-00-913-6058
FSC Code: 5331
MPN: AS3581157

5331-01-289-3214 (AS3581-327)

NIIN: 01-289-3214
In stock
NSN: 5331-01-289-3214
FSC Code: 5331
MPN: AS3581327

5331-01-240-9461 (AS3581-257)

NIIN: 01-240-9461
In stock
NSN: 5331-01-240-9461
FSC Code: 5331
MPN: AS3581257

5331-00-140-7664 (AS3581-212)

NIIN: 00-140-7664
In stock
NSN: 5331-00-140-7664
FSC Code: 5331
MPN: AS3581212

5331-01-190-4485 (AS3581-224)

NIIN: 01-190-4485
In stock
NSN: 5331-01-190-4485
FSC Code: 5331
MPN: AS3581224

5331-01-305-2599 (AS3581-274)

NIIN: 01-305-2599
In stock
NSN: 5331-01-305-2599
FSC Code: 5331
MPN: AS3581274

5331-01-199-5375 (AS3581-016CP)

NIIN: 01-199-5375
In stock
NSN: 5331-01-199-5375
FSC Code: 5331
MPN: AS3581016CP

5331-01-129-0629 (AS3578-377)

NIIN: 01-129-0629
In stock
NSN: 5331-01-129-0629
FSC Code: 5331
MPN: AS3578377

5331-01-323-7102 (AS3581-114CP)

NIIN: 01-323-7102
In stock
NSN: 5331-01-323-7102
FSC Code: 5331
MPN: AS3581114CP

5331-01-310-4604 (AS3581-174)

NIIN: 01-310-4604
In stock
NSN: 5331-01-310-4604
FSC Code: 5331
MPN: AS3581174

5331-00-913-8842 (AS3581-146)

NIIN: 00-913-8842
In stock
NSN: 5331-00-913-8842
FSC Code: 5331
MPN: AS3581146

5331-01-192-9319 (AS3578-913)

NIIN: 01-192-9319
In stock
NSN: 5331-01-192-9319
FSC Code: 5331
MPN: AS3578913

5331-01-319-3441 (AS3581-213)

NIIN: 01-319-3441
In stock
NSN: 5331-01-319-3441
FSC Code: 5331
MPN: AS3581213