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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.

5331-01-604-8351 (123-015-5-90)

NIIN: 01-604-8351
In stock
NSN: 5331-01-604-8351
FSC Code: 5331
MPN: 123015590

5331-01-604-8352 (123-906-5-90)

NIIN: 01-604-8352
In stock
NSN: 5331-01-604-8352
FSC Code: 5331
MPN: 123906590

5331-01-605-3843 (E45-0007-007)

NIIN: 01-605-3843
In stock
NSN: 5331-01-605-3843
FSC Code: 5331
MPN: E450007007

5331-01-605-2138 (91306-ZY3-003)

NIIN: 01-605-2138
In stock
NSN: 5331-01-605-2138
FSC Code: 5331
MPN: 91306ZY3003

5331-01-605-1918 (91309-P8A-A01)

NIIN: 01-605-1918
In stock
NSN: 5331-01-605-1918
FSC Code: 5331
MPN: 91309P8AA01

5331-01-605-1371 (2-173N674)

NIIN: 01-605-1371
In stock
NSN: 5331-01-605-1371
FSC Code: 5331
MPN: 2173N674

5331-01-605-1906 (91359-ZY3-003)

NIIN: 01-605-1906
In stock
NSN: 5331-01-605-1906
FSC Code: 5331
MPN: 91359ZY3003

5331-01-605-0337 (064019-021)

NIIN: 01-605-0337
In stock
NSN: 5331-01-605-0337
FSC Code: 5331
MPN: 064019021

5331-01-604-9805 (J515CH220X0153H)

NIIN: 01-604-9805
In stock
NSN: 5331-01-604-9805
FSC Code: 5331
MPN: J515CH220X0153H

5331-01-604-9062 (25/222305)

NIIN: 01-604-9062
In stock
NSN: 5331-01-604-9062
FSC Code: 5331
MPN: 25222305

5331-01-604-8350 (123-019-5)

NIIN: 01-604-8350
In stock
NSN: 5331-01-604-8350
FSC Code: 5331
MPN: 1230195

5331-01-604-7443 (8199350-2418)

NIIN: 01-604-7443
In stock
NSN: 5331-01-604-7443
FSC Code: 5331
MPN: 81993502418

5331-01-604-7320 (D50-0068 ITEM 4)

NIIN: 01-604-7320
In stock
NSN: 5331-01-604-7320
FSC Code: 5331
MPN: D500068ITEM4

5331-01-604-2667 (560-011-360)

NIIN: 01-604-2667
In stock
NSN: 5331-01-604-2667
FSC Code: 5331
MPN: 560011360

5331-01-605-1436 (4400591-2240)

NIIN: 01-605-1436
In stock
NSN: 5331-01-605-1436
FSC Code: 5331
MPN: 44005912240

5331-01-605-1379 (2-023S70)

NIIN: 01-605-1379
In stock
NSN: 5331-01-605-1379
FSC Code: 5331
MPN: 2023S70

5331-01-605-1373 (2-015N674)

NIIN: 01-605-1373
In stock
NSN: 5331-01-605-1373
FSC Code: 5331
MPN: 2015N674

5331-01-605-1265 (E0962 2-016)

NIIN: 01-605-1265
In stock
NSN: 5331-01-605-1265
FSC Code: 5331
MPN: E09622016

5331-01-605-1251 (206715FIND26)

NIIN: 01-605-1251
In stock
NSN: 5331-01-605-1251
FSC Code: 5331
MPN: 206715FIND26

5331-01-605-0339 (064019-029)

NIIN: 01-605-0339
In stock
NSN: 5331-01-605-0339
FSC Code: 5331
MPN: 064019029

5331-01-604-9565 (000120)

NIIN: 01-604-9565
In stock
NSN: 5331-01-604-9565
FSC Code: 5331
MPN: 000120

5331-01-604-6849 (892445)

NIIN: 01-604-6849
In stock
NSN: 5331-01-604-6849
FSC Code: 5331
MPN: 892445

5331-01-604-6787 (8OR140X3.0)

NIIN: 01-604-6787
In stock
NSN: 5331-01-604-6787
FSC Code: 5331
MPN: 8OR140X30

5331-01-604-3938 (M22050-2-216)

NIIN: 01-604-3938
In stock
NSN: 5331-01-604-3938
FSC Code: 5331
MPN: M220502216

5331-01-604-3844 (58031)

NIIN: 01-604-3844
In stock
NSN: 5331-01-604-3844
FSC Code: 5331
MPN: 58031

5331-01-604-3408 (93210-08003-00)

NIIN: 01-604-3408
In stock
NSN: 5331-01-604-3408
FSC Code: 5331
MPN: 932100800300

5331-01-604-2662 (560-009-360)

NIIN: 01-604-2662
In stock
NSN: 5331-01-604-2662
FSC Code: 5331
MPN: 560009360

5331-01-604-2664 (560-008-360)

NIIN: 01-604-2664
In stock
NSN: 5331-01-604-2664
FSC Code: 5331
MPN: 560008360

5331-01-604-8836 (3102500)

NIIN: 01-604-8836
In stock
NSN: 5331-01-604-8836
FSC Code: 5331
MPN: 3102500

5331-01-604-8349 (123-013-5-90)

NIIN: 01-604-8349
In stock
NSN: 5331-01-604-8349
FSC Code: 5331
MPN: 123013590

5331-01-604-6783 (8OR150X3.0)

NIIN: 01-604-6783
In stock
NSN: 5331-01-604-6783
FSC Code: 5331
MPN: 8OR150X30

5331-01-604-1860 (91353-ZW1-703)

NIIN: 01-604-1860
In stock
NSN: 5331-01-604-1860
FSC Code: 5331
MPN: 91353ZW1703

5331-01-604-1141 (6P2-85075-00-00)

NIIN: 01-604-1141
In stock
NSN: 5331-01-604-1141
FSC Code: 5331
MPN: 6P2850750000

5331-01-605-0338 (064019-045)

NIIN: 01-605-0338
In stock
NSN: 5331-01-605-0338
FSC Code: 5331
MPN: 064019045

5331-01-605-0344 (064019-100)

NIIN: 01-605-0344
In stock
NSN: 5331-01-605-0344
FSC Code: 5331
MPN: 064019100

5331-01-604-9564 (000012)

NIIN: 01-604-9564
In stock
NSN: 5331-01-604-9564
FSC Code: 5331
MPN: 000012

5331-01-604-7310 (LF-6712)

NIIN: 01-604-7310
In stock
NSN: 5331-01-604-7310
FSC Code: 5331
MPN: LF6712

5331-01-604-7328 (NO756-75 2-210)

NIIN: 01-604-7328
In stock
NSN: 5331-01-604-7328
FSC Code: 5331
MPN: NO756752210

5331-01-604-6690 (895056)

NIIN: 01-604-6690
In stock
NSN: 5331-01-604-6690
FSC Code: 5331
MPN: 895056

5331-01-604-4415 (028-11145C003)

NIIN: 01-604-4415
In stock
NSN: 5331-01-604-4415
FSC Code: 5331
MPN: 02811145C003

5331-01-604-2666 (560-005-360)

NIIN: 01-604-2666
In stock
NSN: 5331-01-604-2666
FSC Code: 5331
MPN: 560005360

5331-01-604-2689 (93210-06519-00)

NIIN: 01-604-2689
In stock
NSN: 5331-01-604-2689
FSC Code: 5331
MPN: 932100651900

5331-01-604-2658 (560-010-360)

NIIN: 01-604-2658
In stock
NSN: 5331-01-604-2658
FSC Code: 5331
MPN: 560010360

5331-01-603-9283 (J1438P146)

NIIN: 01-603-9283
In stock
NSN: 5331-01-603-9283
FSC Code: 5331
MPN: J1438P146

5331-01-604-9035 (113-5304)

NIIN: 01-604-9035
In stock
NSN: 5331-01-604-9035
FSC Code: 5331
MPN: 1135304

5331-01-604-8353 (123-908-5-90)

NIIN: 01-604-8353
In stock
NSN: 5331-01-604-8353
FSC Code: 5331
MPN: 123908590

5331-01-604-6784 (8OR.10X3.0)

NIIN: 01-604-6784
In stock
NSN: 5331-01-604-6784
FSC Code: 5331
MPN: 8OR10X30

5331-01-604-4530 (884423)

NIIN: 01-604-4530
In stock
NSN: 5331-01-604-4530
FSC Code: 5331
MPN: 884423