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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.

5331-01-077-4682 (7-061-0264)

NIIN: 01-077-4682
In stock
NSN: 5331-01-077-4682
FSC Code: 5331
MPN: 70610264

5331-00-937-2202 (706090-5)

NIIN: 00-937-2202
In stock
NSN: 5331-00-937-2202
FSC Code: 5331
MPN: 7060905

5331-00-937-2088 (706090-12)

NIIN: 00-937-2088
In stock
NSN: 5331-00-937-2088
FSC Code: 5331
MPN: 70609012

5331-01-444-8405 (3-11FCB7-17-C)

NIIN: 01-444-8405
In stock
NSN: 5331-01-444-8405
FSC Code: 5331
MPN: 311FCB717C

5331-01-247-0598 (706-01)

NIIN: 01-247-0598
In stock
NSN: 5331-01-247-0598
FSC Code: 5331
MPN: 70601

5331-01-452-4491 (ORAR00311-N7038)

NIIN: 01-452-4491
In stock
NSN: 5331-01-452-4491
FSC Code: 5331
MPN: ORAR00311N7038

5331-01-563-5749 (311-80603-213)

NIIN: 01-563-5749
In stock
NSN: 5331-01-563-5749
FSC Code: 5331
MPN: 31180603213

5331-00-582-7673 (705B504P7)

NIIN: 00-582-7673
In stock
NSN: 5331-00-582-7673
FSC Code: 5331
MPN: 705B504P7

5331-00-821-2968 (705B756P4)

NIIN: 00-821-2968
In stock
NSN: 5331-00-821-2968
FSC Code: 5331
MPN: 705B756P4

5331-00-072-7654 (705B505P8)

NIIN: 00-072-7654
In stock
NSN: 5331-00-072-7654
FSC Code: 5331
MPN: 705B505P8

5331-00-243-4881 (705B505P4)

NIIN: 00-243-4881
In stock
NSN: 5331-00-243-4881
FSC Code: 5331
MPN: 705B505P4

5331-00-852-1175 (705B504P37)

NIIN: 00-852-1175
In stock
NSN: 5331-00-852-1175
FSC Code: 5331
MPN: 705B504P37

5331-00-732-7651 (705B504P34)

NIIN: 00-732-7651
In stock
NSN: 5331-00-732-7651
FSC Code: 5331
MPN: 705B504P34

5331-00-072-9123 (705B504P24)

NIIN: 00-072-9123
In stock
NSN: 5331-00-072-9123
FSC Code: 5331
MPN: 705B504P24

5331-00-582-1785 (705B504P4)

NIIN: 00-582-1785
In stock
NSN: 5331-00-582-1785
FSC Code: 5331
MPN: 705B504P4

5331-00-732-7652 (705B504P33)

NIIN: 00-732-7652
In stock
NSN: 5331-00-732-7652
FSC Code: 5331
MPN: 705B504P33

5331-00-072-9131 (705B504P35)

NIIN: 00-072-9131
In stock
NSN: 5331-00-072-9131
FSC Code: 5331
MPN: 705B504P35

5331-01-026-5857 (705B504P28)

NIIN: 01-026-5857
In stock
NSN: 5331-01-026-5857
FSC Code: 5331
MPN: 705B504P28

5331-00-821-1717 (705B504P29)

NIIN: 00-821-1717
In stock
NSN: 5331-00-821-1717
FSC Code: 5331
MPN: 705B504P29

5331-00-649-1822 (705B504P23)

NIIN: 00-649-1822
In stock
NSN: 5331-00-649-1822
FSC Code: 5331
MPN: 705B504P23

5331-00-582-1784 (705B504P17)

NIIN: 00-582-1784
In stock
NSN: 5331-00-582-1784
FSC Code: 5331
MPN: 705B504P17

5331-00-649-1717 (705B504P16)

NIIN: 00-649-1717
In stock
NSN: 5331-00-649-1717
FSC Code: 5331
MPN: 705B504P16

5331-00-821-1520 (705B504P14)

NIIN: 00-821-1520
In stock
NSN: 5331-00-821-1520
FSC Code: 5331
MPN: 705B504P14

5331-00-582-2890 (705B504P11)

NIIN: 00-582-2890
In stock
NSN: 5331-00-582-2890
FSC Code: 5331
MPN: 705B504P11

5331-00-482-4439 (705524-1)

NIIN: 00-482-4439
In stock
NSN: 5331-00-482-4439
FSC Code: 5331
MPN: 7055241

5331-00-708-7769 (705524-122)

NIIN: 00-708-7769
In stock
NSN: 5331-00-708-7769
FSC Code: 5331
MPN: 705524122

5331-00-471-9206 (705524-121)

NIIN: 00-471-9206
In stock
NSN: 5331-00-471-9206
FSC Code: 5331
MPN: 705524121

5331-01-567-0685 (3113877C1)

NIIN: 01-567-0685
In stock
NSN: 5331-01-567-0685
FSC Code: 5331
MPN: 3113877C1

5331-01-567-0770 (3113930C1)

NIIN: 01-567-0770
In stock
NSN: 5331-01-567-0770
FSC Code: 5331
MPN: 3113930C1

5331-01-567-0749 (3113880C1)

NIIN: 01-567-0749
In stock
NSN: 5331-01-567-0749
FSC Code: 5331
MPN: 3113880C1

5331-01-567-0690 (3113878C1)

NIIN: 01-567-0690
In stock
NSN: 5331-01-567-0690
FSC Code: 5331
MPN: 3113878C1

5331-15-162-3228 (D3113635A)

NIIN: 15-162-3228
In stock
NSN: 5331-15-162-3228
FSC Code: 5331
MPN: D3113635A

5331-01-496-7902 (311284PC56)

NIIN: 01-496-7902
In stock
NSN: 5331-01-496-7902
FSC Code: 5331
MPN: 311284PC56

5331-01-496-7908 (311284PC56)

NIIN: 01-496-7908
In stock
NSN: 5331-01-496-7908
FSC Code: 5331
MPN: 311284PC56

5331-01-358-4948 (31-10472-02)

NIIN: 01-358-4948
In stock
NSN: 5331-01-358-4948
FSC Code: 5331
MPN: 311047202

5331-01-358-4949 (31-10473-02)

NIIN: 01-358-4949
In stock
NSN: 5331-01-358-4949
FSC Code: 5331
MPN: 311047302

5331-01-503-1859 (31101-1)

NIIN: 01-503-1859
In stock
NSN: 5331-01-503-1859
FSC Code: 5331
MPN: 311011

5331-01-063-9046 (705-01)

NIIN: 01-063-9046
In stock
NSN: 5331-01-063-9046
FSC Code: 5331
MPN: 70501

5331-01-475-6754 (AA-403-015)

NIIN: 01-475-6754
In stock
NSN: 5331-01-475-6754
FSC Code: 5331
MPN: AA403015

5331-01-475-6755 (3-108-043)

NIIN: 01-475-6755
In stock
NSN: 5331-01-475-6755
FSC Code: 5331
MPN: 3108043

5331-01-475-6753 (AA-403-014)

NIIN: 01-475-6753
In stock
NSN: 5331-01-475-6753
FSC Code: 5331
MPN: AA403014

5331-01-360-2843 (31048E)

NIIN: 01-360-2843
In stock
NSN: 5331-01-360-2843
FSC Code: 5331
MPN: 31048E

5331-01-525-8548 (31036-90148)

NIIN: 01-525-8548
In stock
NSN: 5331-01-525-8548
FSC Code: 5331
MPN: 3103690148

5331-01-525-8556 (31036-90148)

NIIN: 01-525-8556
In stock
NSN: 5331-01-525-8556
FSC Code: 5331
MPN: 3103690148

5331-01-525-8551 (31036-90148)

NIIN: 01-525-8551
In stock
NSN: 5331-01-525-8551
FSC Code: 5331
MPN: 3103690148

5331-01-525-8554 (31036-90148)

NIIN: 01-525-8554
In stock
NSN: 5331-01-525-8554
FSC Code: 5331
MPN: 3103690148

5331-01-448-6045 (B398912-72)

NIIN: 01-448-6045
In stock
NSN: 5331-01-448-6045
FSC Code: 5331
MPN: B39891272

5331-01-448-6060 (B398265-72)

NIIN: 01-448-6060
In stock
NSN: 5331-01-448-6060
FSC Code: 5331
MPN: B39826572