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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.

5331-01-216-1381 (10511289)

NIIN: 01-216-1381
In stock
NSN: 5331-01-216-1381
FSC Code: 5331
MPN: 10511289

5331-01-216-1237 (10511283)

NIIN: 01-216-1237
In stock
NSN: 5331-01-216-1237
FSC Code: 5331
MPN: 10511283

5331-01-216-1238 (10511284)

NIIN: 01-216-1238
In stock
NSN: 5331-01-216-1238
FSC Code: 5331
MPN: 10511284

5331-01-216-1243 (10511308)

NIIN: 01-216-1243
In stock
NSN: 5331-01-216-1243
FSC Code: 5331
MPN: 10511308

5331-01-169-2471 (10511317)

NIIN: 01-169-2471
In stock
NSN: 5331-01-169-2471
FSC Code: 5331
MPN: 10511317

5331-01-216-1240 (10511297)

NIIN: 01-216-1240
In stock
NSN: 5331-01-216-1240
FSC Code: 5331
MPN: 10511297

5331-01-216-1384 (10511304)

NIIN: 01-216-1384
In stock
NSN: 5331-01-216-1384
FSC Code: 5331
MPN: 10511304

5331-01-216-1241 (10511300)

NIIN: 01-216-1241
In stock
NSN: 5331-01-216-1241
FSC Code: 5331
MPN: 10511300

5331-01-169-2470 (10511310)

NIIN: 01-169-2470
In stock
NSN: 5331-01-169-2470
FSC Code: 5331
MPN: 10511310

5331-01-169-2472 (10511331)

NIIN: 01-169-2472
In stock
NSN: 5331-01-169-2472
FSC Code: 5331
MPN: 10511331

5331-01-216-1382 (10511290)

NIIN: 01-216-1382
In stock
NSN: 5331-01-216-1382
FSC Code: 5331
MPN: 10511290

5331-01-169-2474 (10512568)

NIIN: 01-169-2474
In stock
NSN: 5331-01-169-2474
FSC Code: 5331
MPN: 10512568

5331-01-169-3172 (10512516)

NIIN: 01-169-3172
In stock
NSN: 5331-01-169-3172
FSC Code: 5331
MPN: 10512516

5331-01-170-4977 (10512572)

NIIN: 01-170-4977
In stock
NSN: 5331-01-170-4977
FSC Code: 5331
MPN: 10512572

5331-01-169-2463 (10512621)

NIIN: 01-169-2463
In stock
NSN: 5331-01-169-2463
FSC Code: 5331
MPN: 10512621

5331-01-169-2462 (10512613)

NIIN: 01-169-2462
In stock
NSN: 5331-01-169-2462
FSC Code: 5331
MPN: 10512613

5331-01-166-2098 (10512593)

NIIN: 01-166-2098
In stock
NSN: 5331-01-166-2098
FSC Code: 5331
MPN: 10512593

5331-01-166-2099 (10512616)

NIIN: 01-166-2099
In stock
NSN: 5331-01-166-2099
FSC Code: 5331
MPN: 10512616

5331-01-169-3171 (10512595)

NIIN: 01-169-3171
In stock
NSN: 5331-01-169-3171
FSC Code: 5331
MPN: 10512595

5331-01-169-2464 (10512628)

NIIN: 01-169-2464
In stock
NSN: 5331-01-169-2464
FSC Code: 5331
MPN: 10512628

5331-01-166-2100 (10512631)

NIIN: 01-166-2100
In stock
NSN: 5331-01-166-2100
FSC Code: 5331
MPN: 10512631

5331-01-202-1035 (10512649)

NIIN: 01-202-1035
In stock
NSN: 5331-01-202-1035
FSC Code: 5331
MPN: 10512649

5331-01-068-7334 (10512710)

NIIN: 01-068-7334
In stock
NSN: 5331-01-068-7334
FSC Code: 5331
MPN: 10512710

5331-01-169-2465 (10512643)

NIIN: 01-169-2465
In stock
NSN: 5331-01-169-2465
FSC Code: 5331
MPN: 10512643

5331-01-173-9224 (10513412)

NIIN: 01-173-9224
In stock
NSN: 5331-01-173-9224
FSC Code: 5331
MPN: 10513412

5331-00-921-0022 (10513336)

NIIN: 00-921-0022
In stock
NSN: 5331-00-921-0022
FSC Code: 5331
MPN: 10513336

5331-01-196-4836 (10513474)

NIIN: 01-196-4836
In stock
NSN: 5331-01-196-4836
FSC Code: 5331
MPN: 10513474

5331-01-196-4837 (10513457)

NIIN: 01-196-4837
In stock
NSN: 5331-01-196-4837
FSC Code: 5331
MPN: 10513457

5331-01-120-1455 (10513597)

NIIN: 01-120-1455
In stock
NSN: 5331-01-120-1455
FSC Code: 5331
MPN: 10513597

5331-00-912-5830 (10513594)

NIIN: 00-912-5830
In stock
NSN: 5331-00-912-5830
FSC Code: 5331
MPN: 10513594

5331-01-121-2760 (10513596)

NIIN: 01-121-2760
In stock
NSN: 5331-01-121-2760
FSC Code: 5331
MPN: 10513596

5331-01-307-9412 (10513783)

NIIN: 01-307-9412
In stock
NSN: 5331-01-307-9412
FSC Code: 5331
MPN: 10513783

5331-00-354-6509 (10513782)

NIIN: 00-354-6509
In stock
NSN: 5331-00-354-6509
FSC Code: 5331
MPN: 10513782

5331-01-195-1798 (10513466)

NIIN: 01-195-1798
In stock
NSN: 5331-01-195-1798
FSC Code: 5331
MPN: 10513466

5331-01-157-1355 (10513745)

NIIN: 01-157-1355
In stock
NSN: 5331-01-157-1355
FSC Code: 5331
MPN: 10513745

5331-01-195-1797 (10513789)

NIIN: 01-195-1797
In stock
NSN: 5331-01-195-1797
FSC Code: 5331
MPN: 10513789

5331-00-995-4937 (10514470)

NIIN: 00-995-4937
In stock
NSN: 5331-00-995-4937
FSC Code: 5331
MPN: 10514470

5331-00-990-8980 (10514579)

NIIN: 00-990-8980
In stock
NSN: 5331-00-990-8980
FSC Code: 5331
MPN: 10514579

5331-00-989-6986 (10514259)

NIIN: 00-989-6986
In stock
NSN: 5331-00-989-6986
FSC Code: 5331
MPN: 10514259

5331-01-120-1454 (10513595)

NIIN: 01-120-1454
In stock
NSN: 5331-01-120-1454
FSC Code: 5331
MPN: 10513595

5331-00-989-4880 (10516023)

NIIN: 00-989-4880
In stock
NSN: 5331-00-989-4880
FSC Code: 5331
MPN: 10516023

5331-00-068-3257 (10516251)

NIIN: 00-068-3257
In stock
NSN: 5331-00-068-3257
FSC Code: 5331
MPN: 10516251

5331-01-216-1242 (10523726)

NIIN: 01-216-1242
In stock
NSN: 5331-01-216-1242
FSC Code: 5331
MPN: 10523726

5331-01-195-7639 (10523448)

NIIN: 01-195-7639
In stock
NSN: 5331-01-195-7639
FSC Code: 5331
MPN: 10523448

5331-01-288-4533 (10523440)

NIIN: 01-288-4533
In stock
NSN: 5331-01-288-4533
FSC Code: 5331
MPN: 10523440

5331-01-216-1383 (10523727)

NIIN: 01-216-1383
In stock
NSN: 5331-01-216-1383
FSC Code: 5331
MPN: 10523727

5331-01-216-5700 (10523728)

NIIN: 01-216-5700
In stock
NSN: 5331-01-216-5700
FSC Code: 5331
MPN: 10523728

5331-01-221-9662 (10524008)

NIIN: 01-221-9662
In stock
NSN: 5331-01-221-9662
FSC Code: 5331
MPN: 10524008