Skip to content

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.

5331-00-297-6028 (2334313-504)

NIIN: 00-297-6028
In stock
NSN: 5331-00-297-6028
FSC Code: 5331
MPN: 2334313504

5331-01-168-4492 (2-334P642-70)

NIIN: 01-168-4492
In stock
NSN: 5331-01-168-4492
FSC Code: 5331
MPN: 2334P64270

5331-00-701-8089 (2-335)

NIIN: 00-701-8089
In stock
NSN: 5331-00-701-8089
FSC Code: 5331
MPN: 2335

5331-00-974-7169 (2-335S1032-70)

NIIN: 00-974-7169
In stock
NSN: 5331-00-974-7169
FSC Code: 5331
MPN: 2335S103270

5331-00-928-1823 (2-335N674-70)

NIIN: 00-928-1823
In stock
NSN: 5331-00-928-1823
FSC Code: 5331
MPN: 2335N67470

5331-00-757-5113 (2-335E515-8)

NIIN: 00-757-5113
In stock
NSN: 5331-00-757-5113
FSC Code: 5331
MPN: 2335E5158

5331-00-420-5918 (2-335S604-7)

NIIN: 00-420-5918
In stock
NSN: 5331-00-420-5918
FSC Code: 5331
MPN: 2335S6047

5331-00-579-7543 (2-336)

NIIN: 00-579-7543
In stock
NSN: 5331-00-579-7543
FSC Code: 5331
MPN: 2336

5331-00-995-2736 (2-336)

NIIN: 00-995-2736
In stock
NSN: 5331-00-995-2736
FSC Code: 5331
MPN: 2336

5331-01-005-4056 (2-335V0747-75)

NIIN: 01-005-4056
In stock
NSN: 5331-01-005-4056
FSC Code: 5331
MPN: 2335V074775

5331-01-004-5034 (2-336E540-8)

NIIN: 01-004-5034
In stock
NSN: 5331-01-004-5034
FSC Code: 5331
MPN: 2336E5408

5331-01-222-0838 (2-335V894-90)

NIIN: 01-222-0838
In stock
NSN: 5331-01-222-0838
FSC Code: 5331
MPN: 2335V89490

5331-00-786-5273 (2-336N163-7)

NIIN: 00-786-5273
In stock
NSN: 5331-00-786-5273
FSC Code: 5331
MPN: 2336N1637

5331-01-031-8239 (2-336-N674-70)

NIIN: 01-031-8239
In stock
NSN: 5331-01-031-8239
FSC Code: 5331
MPN: 2336N67470

5331-01-277-2200 (2336-514AD)

NIIN: 01-277-2200
In stock
NSN: 5331-01-277-2200
FSC Code: 5331
MPN: 2336514AD

5331-00-458-1950 (2-337)

NIIN: 00-458-1950
In stock
NSN: 5331-00-458-1950
FSC Code: 5331
MPN: 2337

5331-01-288-7638 (2-336L1223-60)

NIIN: 01-288-7638
In stock
NSN: 5331-01-288-7638
FSC Code: 5331
MPN: 2336L122360

5331-01-160-4342 (2-337N756-75)

NIIN: 01-160-4342
In stock
NSN: 5331-01-160-4342
FSC Code: 5331
MPN: 2337N75675

5331-01-162-4705 (2-338)

NIIN: 01-162-4705
In stock
NSN: 5331-01-162-4705
FSC Code: 5331
MPN: 2338

5331-00-074-3764 (2-337N951-75)

NIIN: 00-074-3764
In stock
NSN: 5331-00-074-3764
FSC Code: 5331
MPN: 2337N95175

5331-00-524-0718 (2-338)

NIIN: 00-524-0718
In stock
NSN: 5331-00-524-0718
FSC Code: 5331
MPN: 2338

5331-00-493-8258 (2-338)

NIIN: 00-493-8258
In stock
NSN: 5331-00-493-8258
FSC Code: 5331
MPN: 2338

5331-00-909-3239 (2-338L608-6)

NIIN: 00-909-3239
In stock
NSN: 5331-00-909-3239
FSC Code: 5331
MPN: 2338L6086

5331-01-149-4866 (2-338C147-7)

NIIN: 01-149-4866
In stock
NSN: 5331-01-149-4866
FSC Code: 5331
MPN: 2338C1477

5331-00-759-3573 (2-338MILG23652TY1)

NIIN: 00-759-3573
In stock
NSN: 5331-00-759-3573
FSC Code: 5331
MPN: 2338MILG23652TY1

5331-00-689-6469 (2-338E515-80CP)

NIIN: 00-689-6469
In stock
NSN: 5331-00-689-6469
FSC Code: 5331
MPN: 2338E51580CP

5331-00-862-6861 (2-338N0951-75)

NIIN: 00-862-6861
In stock
NSN: 5331-00-862-6861
FSC Code: 5331
MPN: 2338N095175

5331-01-258-8506 (2-338C944-70)

NIIN: 01-258-8506
In stock
NSN: 5331-01-258-8506
FSC Code: 5331
MPN: 2338C94470

5331-00-628-3927 (2-338N299-50)

NIIN: 00-628-3927
In stock
NSN: 5331-00-628-3927
FSC Code: 5331
MPN: 2338N29950

5331-00-367-4374 (2-338V0747-75)

NIIN: 00-367-4374
In stock
NSN: 5331-00-367-4374
FSC Code: 5331
MPN: 2338V074775

5331-01-162-4706 (2-339)

NIIN: 01-162-4706
In stock
NSN: 5331-01-162-4706
FSC Code: 5331
MPN: 2339

5331-00-425-0291 (233989PC67)

NIIN: 00-425-0291
In stock
NSN: 5331-00-425-0291
FSC Code: 5331
MPN: 233989PC67

5331-00-167-5159 (2-339-77-545)

NIIN: 00-167-5159
In stock
NSN: 5331-00-167-5159
FSC Code: 5331
MPN: 233977545

5331-00-392-0829 (233989PC64)

NIIN: 00-392-0829
In stock
NSN: 5331-00-392-0829
FSC Code: 5331
MPN: 233989PC64

5331-00-563-8493 (2-339-77-545)

NIIN: 00-563-8493
In stock
NSN: 5331-00-563-8493
FSC Code: 5331
MPN: 233977545

5331-01-451-3212 (00U-Z078)

NIIN: 01-451-3212
In stock
NSN: 5331-01-451-3212
FSC Code: 5331
MPN: 00UZ078

5331-00-392-0830 (233990PC67)

NIIN: 00-392-0830
In stock
NSN: 5331-00-392-0830
FSC Code: 5331
MPN: 233990PC67

5331-01-147-1267 (2-339E515-80)

NIIN: 01-147-1267
In stock
NSN: 5331-01-147-1267
FSC Code: 5331
MPN: 2339E51580

5331-00-395-5739 (233989PC69)

NIIN: 00-395-5739
In stock
NSN: 5331-00-395-5739
FSC Code: 5331
MPN: 233989PC69

5331-00-984-6618 (2-33C0MPS604-7)

NIIN: 00-984-6618
In stock
NSN: 5331-00-984-6618
FSC Code: 5331
MPN: 233C0MPS6047

5331-12-197-7009 (RDR57X5VN3014NBR70)

NIIN: 12-197-7009
In stock
NSN: 5331-12-197-7009
FSC Code: 5331
MPN: RDR57X5VN3014NBR70

5331-12-151-3565 (RDR220X5BVN3014NBR70)

NIIN: 12-151-3565
In stock
NSN: 5331-12-151-3565
FSC Code: 5331
MPN: RDR220X5BVN3014NBR70

5331-01-359-4319 (2-370N406-60)

NIIN: 01-359-4319
In stock
NSN: 5331-01-359-4319
FSC Code: 5331
MPN: 2370N40660

5331-01-197-1393 (2-339V709-90)

NIIN: 01-197-1393
In stock
NSN: 5331-01-197-1393
FSC Code: 5331
MPN: 2339V70990

5331-01-232-2372 (2-340)

NIIN: 01-232-2372
In stock
NSN: 5331-01-232-2372
FSC Code: 5331
MPN: 2340

5331-12-335-6858 (RDR290X5VN3014FPM80)

NIIN: 12-335-6858
In stock
NSN: 5331-12-335-6858
FSC Code: 5331
MPN: RDR290X5VN3014FPM80

5331-01-340-8205 (01/397424)

NIIN: 01-340-8205
In stock
NSN: 5331-01-340-8205
FSC Code: 5331
MPN: 01397424

5331-01-340-8201 (01/463512)

NIIN: 01-340-8201
In stock
NSN: 5331-01-340-8201
FSC Code: 5331
MPN: 01463512