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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.

5331-12-172-2590 (OR68X2-70FKM/576)

NIIN: 12-172-2590
In stock
NSN: 5331-12-172-2590
FSC Code: 5331
MPN: OR68X270FKM576

5331-12-343-8922 (0634-313-378)

NIIN: 12-343-8922
In stock
NSN: 5331-12-343-8922
FSC Code: 5331
MPN: 0634313378

5331-01-360-0943 (0634-306-016)

NIIN: 01-360-0943
In stock
NSN: 5331-01-360-0943
FSC Code: 5331
MPN: 0634306016

5331-01-361-0356 (0634-303-681)

NIIN: 01-361-0356
In stock
NSN: 5331-01-361-0356
FSC Code: 5331
MPN: 0634303681

5331-01-359-9342 (0634-303-289)

NIIN: 01-359-9342
In stock
NSN: 5331-01-359-9342
FSC Code: 5331
MPN: 0634303289

5331-12-342-5218 (06-321C)

NIIN: 12-342-5218
In stock
NSN: 5331-12-342-5218
FSC Code: 5331
MPN: 06321C

5331-12-342-5356 (06-321C)

NIIN: 12-342-5356
In stock
NSN: 5331-12-342-5356
FSC Code: 5331
MPN: 06321C

5331-12-323-4674 (0634.316.191)

NIIN: 12-323-4674
In stock
NSN: 5331-12-323-4674
FSC Code: 5331
MPN: 0634316191

5331-12-342-5219 (-06-321C)

NIIN: 12-342-5219
In stock
NSN: 5331-12-342-5219
FSC Code: 5331
MPN: 06321C

5331-17-106-0601 (OR4.00X1.00-70FPM)

NIIN: 17-106-0601
In stock
NSN: 5331-17-106-0601
FSC Code: 5331
MPN: OR400X10070FPM

5331-17-106-0600 (OR12.00X1.00-70FPM)

NIIN: 17-106-0600
In stock
NSN: 5331-17-106-0600
FSC Code: 5331
MPN: OR1200X10070FPM

5331-00-550-7319 (267810R1)

NIIN: 00-550-7319
In stock
NSN: 5331-00-550-7319
FSC Code: 5331
MPN: 267810R1

5331-01-437-0556 (M2L3143-1A)

NIIN: 01-437-0556
In stock
NSN: 5331-01-437-0556
FSC Code: 5331
MPN: M2L31431A

5331-17-055-7666 (OR67.95X2.62-70FPM)

NIIN: 17-055-7666
In stock
NSN: 5331-17-055-7666
FSC Code: 5331
MPN: OR6795X26270FPM

5331-17-055-7631 (OR3.68X1.78-70FPM)

NIIN: 17-055-7631
In stock
NSN: 5331-17-055-7631
FSC Code: 5331
MPN: OR368X17870FPM

5331-17-055-7639 (OR20.35X1.78-70FPM)

NIIN: 17-055-7639
In stock
NSN: 5331-17-055-7639
FSC Code: 5331
MPN: OR2035X17870FPM

5331-01-437-0558 (M2L3143-1A)

NIIN: 01-437-0558
In stock
NSN: 5331-01-437-0558
FSC Code: 5331
MPN: M2L31431A

5331-14-265-3829 (06287F3300A21B6)

NIIN: 14-265-3829
In stock
NSN: 5331-14-265-3829
FSC Code: 5331
MPN: 06287F3300A21B6

5331-01-562-1628 (0621-016)

NIIN: 01-562-1628
In stock
NSN: 5331-01-562-1628
FSC Code: 5331
MPN: 0621016

5331-01-469-7607 (061-9455)

NIIN: 01-469-7607
In stock
NSN: 5331-01-469-7607
FSC Code: 5331
MPN: 0619455

5331-01-516-5599 (061-8561)

NIIN: 01-516-5599
In stock
NSN: 5331-01-516-5599
FSC Code: 5331
MPN: 0618561

5331-01-474-1528 (061-9458)

NIIN: 01-474-1528
In stock
NSN: 5331-01-474-1528
FSC Code: 5331
MPN: 0619458

5331-01-418-2863 (061-9456)

NIIN: 01-418-2863
In stock
NSN: 5331-01-418-2863
FSC Code: 5331
MPN: 0619456

5331-01-526-4926 (061-7538)

NIIN: 01-526-4926
In stock
NSN: 5331-01-526-4926
FSC Code: 5331
MPN: 0617538

5331-00-482-1444 (267-18186-6)

NIIN: 00-482-1444
In stock
NSN: 5331-00-482-1444
FSC Code: 5331
MPN: 267181866

5331-00-238-7380 (267-18368-1)

NIIN: 00-238-7380
In stock
NSN: 5331-00-238-7380
FSC Code: 5331
MPN: 267183681

5331-00-186-9214 (267-18186-1)

NIIN: 00-186-9214
In stock
NSN: 5331-00-186-9214
FSC Code: 5331
MPN: 267181861

5331-00-367-5485 (2671681-010)

NIIN: 00-367-5485
In stock
NSN: 5331-00-367-5485
FSC Code: 5331
MPN: 2671681010

5331-00-482-1443 (267-18186-3)

NIIN: 00-482-1443
In stock
NSN: 5331-00-482-1443
FSC Code: 5331
MPN: 267181863

5331-00-482-1442 (267-18186-2)

NIIN: 00-482-1442
In stock
NSN: 5331-00-482-1442
FSC Code: 5331
MPN: 267181862

5331-00-473-0573 (2671681-332)

NIIN: 00-473-0573
In stock
NSN: 5331-00-473-0573
FSC Code: 5331
MPN: 2671681332

5331-00-437-8643 (2671231-325)

NIIN: 00-437-8643
In stock
NSN: 5331-00-437-8643
FSC Code: 5331
MPN: 2671231325

5331-01-285-2597 (2670890-6)

NIIN: 01-285-2597
In stock
NSN: 5331-01-285-2597
FSC Code: 5331
MPN: 26708906

5331-01-219-9072 (2670890-8)

NIIN: 01-219-9072
In stock
NSN: 5331-01-219-9072
FSC Code: 5331
MPN: 26708908

5331-01-223-1070 (2670890-7)

NIIN: 01-223-1070
In stock
NSN: 5331-01-223-1070
FSC Code: 5331
MPN: 26708907

5331-01-222-1649 (2670890-5)

NIIN: 01-222-1649
In stock
NSN: 5331-01-222-1649
FSC Code: 5331
MPN: 26708905

5331-01-223-2080 (2670890-3)

NIIN: 01-223-2080
In stock
NSN: 5331-01-223-2080
FSC Code: 5331
MPN: 26708903

5331-01-220-3354 (2670890-4)

NIIN: 01-220-3354
In stock
NSN: 5331-01-220-3354
FSC Code: 5331
MPN: 26708904

5331-01-327-0946 (2670890-24)

NIIN: 01-327-0946
In stock
NSN: 5331-01-327-0946
FSC Code: 5331
MPN: 267089024

5331-01-327-0945 (2670890-11)

NIIN: 01-327-0945
In stock
NSN: 5331-01-327-0945
FSC Code: 5331
MPN: 267089011

5331-01-222-1643 (2670890-20)

NIIN: 01-222-1643
In stock
NSN: 5331-01-222-1643
FSC Code: 5331
MPN: 267089020

5331-01-223-1072 (2670890-18)

NIIN: 01-223-1072
In stock
NSN: 5331-01-223-1072
FSC Code: 5331
MPN: 267089018

5331-01-415-1932 (0-610297-E24)

NIIN: 01-415-1932
In stock
NSN: 5331-01-415-1932
FSC Code: 5331
MPN: 0610297E24

5331-01-223-1075 (2670890-2)

NIIN: 01-223-1075
In stock
NSN: 5331-01-223-1075
FSC Code: 5331
MPN: 26708902

5331-01-221-9213 (2670890-12)

NIIN: 01-221-9213
In stock
NSN: 5331-01-221-9213
FSC Code: 5331
MPN: 267089012

5331-01-444-8387 (061.024.00)

NIIN: 01-444-8387
In stock
NSN: 5331-01-444-8387
FSC Code: 5331
MPN: 06102400

5331-01-447-9843 (061.009.00)

NIIN: 01-447-9843
In stock
NSN: 5331-01-447-9843
FSC Code: 5331
MPN: 06100900

5331-00-061-9116 (2668577-10)

NIIN: 00-061-9116
In stock
NSN: 5331-00-061-9116
FSC Code: 5331
MPN: 266857710