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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.

5331-01-236-1730 (LS35056-014)

NIIN: 01-236-1730
In stock
NSN: 5331-01-236-1730
FSC Code: 5331
MPN: LS35056014

5331-00-152-5150 (LS12906-186)

NIIN: 00-152-5150
In stock
NSN: 5331-00-152-5150
FSC Code: 5331
MPN: LS12906186

5331-01-445-1448 (84-71029C)

NIIN: 01-445-1448
In stock
NSN: 5331-01-445-1448
FSC Code: 5331
MPN: 8471029C

5331-00-982-3623 (LS10160-278)

NIIN: 00-982-3623
In stock
NSN: 5331-00-982-3623
FSC Code: 5331
MPN: LS10160278

5331-00-616-5909 (LS10155-14)

NIIN: 00-616-5909
In stock
NSN: 5331-00-616-5909
FSC Code: 5331
MPN: LS1015514

5331-01-296-2075 (LR011115-10)

NIIN: 01-296-2075
In stock
NSN: 5331-01-296-2075
FSC Code: 5331
MPN: LR01111510

5331-01-292-6343 (LR-125042-12)

NIIN: 01-292-6343
In stock
NSN: 5331-01-292-6343
FSC Code: 5331
MPN: LR12504212

5331-01-295-5735 (LR011115-14)

NIIN: 01-295-5735
In stock
NSN: 5331-01-295-5735
FSC Code: 5331
MPN: LR01111514

5331-01-432-1403 (8-457)

NIIN: 01-432-1403
In stock
NSN: 5331-01-432-1403
FSC Code: 5331
MPN: 8457

5331-01-455-4832 (845-7016077-X-079)

NIIN: 01-455-4832
In stock
NSN: 5331-01-455-4832
FSC Code: 5331
MPN: 8457016077X079

5331-01-385-1830 (845-6343753PC3)

NIIN: 01-385-1830
In stock
NSN: 5331-01-385-1830
FSC Code: 5331
MPN: 8456343753PC3

5331-01-504-1572 (845-6556398PC66)

NIIN: 01-504-1572
In stock
NSN: 5331-01-504-1572
FSC Code: 5331
MPN: 8456556398PC66

5331-01-372-3611 (845-6343753PC11)

NIIN: 01-372-3611
In stock
NSN: 5331-01-372-3611
FSC Code: 5331
MPN: 8456343753PC11

5331-00-225-0172 (LP1309)

NIIN: 00-225-0172
In stock
NSN: 5331-00-225-0172
FSC Code: 5331
MPN: LP1309

5331-01-230-1595 (LP1002)

NIIN: 01-230-1595
In stock
NSN: 5331-01-230-1595
FSC Code: 5331
MPN: LP1002

5331-01-151-5556 (L-NB252251-SMCT03)

NIIN: 01-151-5556
In stock
NSN: 5331-01-151-5556
FSC Code: 5331
MPN: LNB252251SMCT03

5331-01-298-4742 (LM615)

NIIN: 01-298-4742
In stock
NSN: 5331-01-298-4742
FSC Code: 5331
MPN: LM615

5331-00-786-0410 (LM4-28)

NIIN: 00-786-0410
In stock
NSN: 5331-00-786-0410
FSC Code: 5331
MPN: LM428

5331-01-505-5176 (853-09952-000)

NIIN: 01-505-5176
In stock
NSN: 5331-01-505-5176
FSC Code: 5331
MPN: 85309952000

5331-01-542-2513 (843-C-8044)

NIIN: 01-542-2513
In stock
NSN: 5331-01-542-2513
FSC Code: 5331
MPN: 843C8044

5331-01-511-2660 (853-9997-000)

NIIN: 01-511-2660
In stock
NSN: 5331-01-511-2660
FSC Code: 5331
MPN: 8539997000

5331-01-511-2736 (853-9999-000)

NIIN: 01-511-2736
In stock
NSN: 5331-01-511-2736
FSC Code: 5331
MPN: 8539999000

5331-01-542-2508 (843-C-8044)

NIIN: 01-542-2508
In stock
NSN: 5331-01-542-2508
FSC Code: 5331
MPN: 843C8044

5331-01-511-2681 (853-9998-000)

NIIN: 01-511-2681
In stock
NSN: 5331-01-511-2681
FSC Code: 5331
MPN: 8539998000

5331-01-234-4762 (LM3110301PC25)

NIIN: 01-234-4762
In stock
NSN: 5331-01-234-4762
FSC Code: 5331
MPN: LM3110301PC25

5331-01-271-2049 (LL-HX5-4422)

NIIN: 01-271-2049
In stock
NSN: 5331-01-271-2049
FSC Code: 5331
MPN: LLHX54422

5331-01-268-3663 (LL-HX5-4401)

NIIN: 01-268-3663
In stock
NSN: 5331-01-268-3663
FSC Code: 5331
MPN: LLHX54401

5331-01-268-5586 (LL-HX5-4403)

NIIN: 01-268-5586
In stock
NSN: 5331-01-268-5586
FSC Code: 5331
MPN: LLHX54403

5331-01-266-3293 (LL-HX5-4453)

NIIN: 01-266-3293
In stock
NSN: 5331-01-266-3293
FSC Code: 5331
MPN: LLHX54453

5331-01-254-1387 (LL-HX5-1453)

NIIN: 01-254-1387
In stock
NSN: 5331-01-254-1387
FSC Code: 5331
MPN: LLHX51453

5331-01-268-5587 (LL-HX5-4418)

NIIN: 01-268-5587
In stock
NSN: 5331-01-268-5587
FSC Code: 5331
MPN: LLHX54418

5331-01-268-1248 (LL-HX5-4412)

NIIN: 01-268-1248
In stock
NSN: 5331-01-268-1248
FSC Code: 5331
MPN: LLHX54412

5331-01-271-5957 (LL-HX5-4421)

NIIN: 01-271-5957
In stock
NSN: 5331-01-271-5957
FSC Code: 5331
MPN: LLHX54421

5331-01-271-2532 (LL-HX5-4419)

NIIN: 01-271-2532
In stock
NSN: 5331-01-271-2532
FSC Code: 5331
MPN: LLHX54419

5331-01-264-4234 (LL-HX5-2816)

NIIN: 01-264-4234
In stock
NSN: 5331-01-264-4234
FSC Code: 5331
MPN: LLHX52816

5331-01-271-2294 (LL-HX5-0930)

NIIN: 01-271-2294
In stock
NSN: 5331-01-271-2294
FSC Code: 5331
MPN: LLHX50930

5331-01-255-1061 (LL-HX5-1450)

NIIN: 01-255-1061
In stock
NSN: 5331-01-255-1061
FSC Code: 5331
MPN: LLHX51450

5331-01-254-1380 (LL-HX5-1481)

NIIN: 01-254-1380
In stock
NSN: 5331-01-254-1380
FSC Code: 5331
MPN: LLHX51481

5331-01-245-7216 (LL-HX4-7446)

NIIN: 01-245-7216
In stock
NSN: 5331-01-245-7216
FSC Code: 5331
MPN: LLHX47446

5331-01-240-6003 (LL-HX4-7318)

NIIN: 01-240-6003
In stock
NSN: 5331-01-240-6003
FSC Code: 5331
MPN: LLHX47318

5331-01-235-1686 (LL-HX4-5753)

NIIN: 01-235-1686
In stock
NSN: 5331-01-235-1686
FSC Code: 5331
MPN: LLHX45753

5331-01-258-4642 (LL-HX4-9536)

NIIN: 01-258-4642
In stock
NSN: 5331-01-258-4642
FSC Code: 5331
MPN: LLHX49536

5331-01-241-0803 (LL-HX4-7315)

NIIN: 01-241-0803
In stock
NSN: 5331-01-241-0803
FSC Code: 5331
MPN: LLHX47315

5331-01-240-6002 (LL-HX4-7317)

NIIN: 01-240-6002
In stock
NSN: 5331-01-240-6002
FSC Code: 5331
MPN: LLHX47317

5331-01-237-2688 (LL-HX4-5302)

NIIN: 01-237-2688
In stock
NSN: 5331-01-237-2688
FSC Code: 5331
MPN: LLHX45302

5331-01-241-6421 (LL-HX4-7103)

NIIN: 01-241-6421
In stock
NSN: 5331-01-241-6421
FSC Code: 5331
MPN: LLHX47103

5331-01-234-9437 (LL-HX4-3804)

NIIN: 01-234-9437
In stock
NSN: 5331-01-234-9437
FSC Code: 5331
MPN: LLHX43804

5331-01-229-4114 (LL-HX4-4875)

NIIN: 01-229-4114
In stock
NSN: 5331-01-229-4114
FSC Code: 5331
MPN: LLHX44875