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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.

5331-01-406-0629 (89810/11)

NIIN: 01-406-0629
In stock
NSN: 5331-01-406-0629
FSC Code: 5331
MPN: 8981011

5331-01-543-6741 (8978-030-00W)

NIIN: 01-543-6741
In stock
NSN: 5331-01-543-6741
FSC Code: 5331
MPN: 897803000W

5331-01-544-0014 (8978-029-000)

NIIN: 01-544-0014
In stock
NSN: 5331-01-544-0014
FSC Code: 5331
MPN: 8978029000

5331-01-454-0532 (897-00)

NIIN: 01-454-0532
In stock
NSN: 5331-01-454-0532
FSC Code: 5331
MPN: 89700

5331-01-563-0420 (896158A01)

NIIN: 01-563-0420
In stock
NSN: 5331-01-563-0420
FSC Code: 5331
MPN: 896158A01

5331-01-562-0827 (896160A01)

NIIN: 01-562-0827
In stock
NSN: 5331-01-562-0827
FSC Code: 5331
MPN: 896160A01

5331-01-551-4022 (89-50211)

NIIN: 01-551-4022
In stock
NSN: 5331-01-551-4022
FSC Code: 5331
MPN: 8950211

5331-01-454-0531 (895-00)

NIIN: 01-454-0531
In stock
NSN: 5331-01-454-0531
FSC Code: 5331
MPN: 89500

5331-01-550-9167 (89-50210)

NIIN: 01-550-9167
In stock
NSN: 5331-01-550-9167
FSC Code: 5331
MPN: 8950210

5331-01-422-1745 (89-50210)

NIIN: 01-422-1745
In stock
NSN: 5331-01-422-1745
FSC Code: 5331
MPN: 8950210

5331-01-422-1742 (89-50212)

NIIN: 01-422-1742
In stock
NSN: 5331-01-422-1742
FSC Code: 5331
MPN: 8950212

5331-01-021-9207 (M7695)

NIIN: 01-021-9207
In stock
NSN: 5331-01-021-9207
FSC Code: 5331
MPN: M7695

5331-01-414-0691 (897065-983-0)

NIIN: 01-414-0691
In stock
NSN: 5331-01-414-0691
FSC Code: 5331
MPN: 8970659830

5331-01-369-6673 (8943B)

NIIN: 01-369-6673
In stock
NSN: 5331-01-369-6673
FSC Code: 5331
MPN: 8943B

5331-01-483-6144 (894128-9150)

NIIN: 01-483-6144
In stock
NSN: 5331-01-483-6144
FSC Code: 5331
MPN: 8941289150

5331-01-413-3724 (894167-8850)

NIIN: 01-413-3724
In stock
NSN: 5331-01-413-3724
FSC Code: 5331
MPN: 8941678850

5331-01-278-6073 (M73X5)

NIIN: 01-278-6073
In stock
NSN: 5331-01-278-6073
FSC Code: 5331
MPN: M73X5

5331-01-138-2634 (M7302-A063)

NIIN: 01-138-2634
In stock
NSN: 5331-01-138-2634
FSC Code: 5331
MPN: M7302A063

5331-01-278-6072 (M73X4)

NIIN: 01-278-6072
In stock
NSN: 5331-01-278-6072
FSC Code: 5331
MPN: M73X4

5331-01-355-1333 (89120-235)

NIIN: 01-355-1333
In stock
NSN: 5331-01-355-1333
FSC Code: 5331
MPN: 89120235

5331-01-288-7701 (M-600-1-OR)

NIIN: 01-288-7701
In stock
NSN: 5331-01-288-7701
FSC Code: 5331
MPN: M6001OR

5331-01-292-9452 (M600297)

NIIN: 01-292-9452
In stock
NSN: 5331-01-292-9452
FSC Code: 5331
MPN: M600297

5331-00-631-4437 (M-5841)

NIIN: 00-631-4437
In stock
NSN: 5331-00-631-4437
FSC Code: 5331
MPN: M5841

5331-01-021-9206 (M-5691)

NIIN: 01-021-9206
In stock
NSN: 5331-01-021-9206
FSC Code: 5331
MPN: M5691

5331-01-021-9205 (M-5690)

NIIN: 01-021-9205
In stock
NSN: 5331-01-021-9205
FSC Code: 5331
MPN: M5690

5331-01-461-9770 (89041-1-5)

NIIN: 01-461-9770
In stock
NSN: 5331-01-461-9770
FSC Code: 5331
MPN: 8904115

5331-01-541-4848 (8900630P45)

NIIN: 01-541-4848
In stock
NSN: 5331-01-541-4848
FSC Code: 5331
MPN: 8900630P45

5331-01-567-3865 (88X4FKM)

NIIN: 01-567-3865
In stock
NSN: 5331-01-567-3865
FSC Code: 5331
MPN: 88X4FKM

5331-01-350-6009 (88-P2-246)

NIIN: 01-350-6009
In stock
NSN: 5331-01-350-6009
FSC Code: 5331
MPN: 88P2246

5331-01-434-4851 (88894-0)

NIIN: 01-434-4851
In stock
NSN: 5331-01-434-4851
FSC Code: 5331
MPN: 888940

5331-01-434-4858 (88892-0)

NIIN: 01-434-4858
In stock
NSN: 5331-01-434-4858
FSC Code: 5331
MPN: 888920

5331-01-434-4863 (88893-0)

NIIN: 01-434-4863
In stock
NSN: 5331-01-434-4863
FSC Code: 5331
MPN: 888930

5331-01-434-4855 (88891-0)

NIIN: 01-434-4855
In stock
NSN: 5331-01-434-4855
FSC Code: 5331
MPN: 888910

5331-01-467-8275 (8885-501505)

NIIN: 01-467-8275
In stock
NSN: 5331-01-467-8275
FSC Code: 5331
MPN: 8885501505

5331-01-467-8234 (8885-501448)

NIIN: 01-467-8234
In stock
NSN: 5331-01-467-8234
FSC Code: 5331
MPN: 8885501448

5331-01-415-6731 (885-850-001)

NIIN: 01-415-6731
In stock
NSN: 5331-01-415-6731
FSC Code: 5331
MPN: 885850001

5331-01-364-1943 (88-45H643)

NIIN: 01-364-1943
In stock
NSN: 5331-01-364-1943
FSC Code: 5331
MPN: 8845H643

5331-00-582-2906 (M483-7)

NIIN: 00-582-2906
In stock
NSN: 5331-00-582-2906
FSC Code: 5331
MPN: M4837

5331-01-150-8935 (M469)

NIIN: 01-150-8935
In stock
NSN: 5331-01-150-8935
FSC Code: 5331
MPN: M469

5331-01-301-2073 (M4237T)

NIIN: 01-301-2073
In stock
NSN: 5331-01-301-2073
FSC Code: 5331
MPN: M4237T

5331-01-419-7759 (8826-70)

NIIN: 01-419-7759
In stock
NSN: 5331-01-419-7759
FSC Code: 5331
MPN: 882670

5331-01-463-4464 (ITEM 8 8824BITEM8)

NIIN: 01-463-4464
In stock
NSN: 5331-01-463-4464
FSC Code: 5331
MPN: ITEM88824BITEM8

5331-01-414-1030 (88-12240)

NIIN: 01-414-1030
In stock
NSN: 5331-01-414-1030
FSC Code: 5331
MPN: 8812240

5331-01-355-1440 (8811-4389-1)

NIIN: 01-355-1440
In stock
NSN: 5331-01-355-1440
FSC Code: 5331
MPN: 881143891

5331-01-358-6585 (881132C1)

NIIN: 01-358-6585
In stock
NSN: 5331-01-358-6585
FSC Code: 5331
MPN: 881132C1

5331-01-371-7159 (8811-1459-2)

NIIN: 01-371-7159
In stock
NSN: 5331-01-371-7159
FSC Code: 5331
MPN: 881114592

5331-01-372-3530 (8801-9PC22)

NIIN: 01-372-3530
In stock
NSN: 5331-01-372-3530
FSC Code: 5331
MPN: 88019PC22

5331-01-372-9384 (8801-19PC8)

NIIN: 01-372-9384
In stock
NSN: 5331-01-372-9384
FSC Code: 5331
MPN: 880119PC8