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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.

5331-01-346-2912 (582509C1)

NIIN: 01-346-2912
In stock
NSN: 5331-01-346-2912
FSC Code: 5331
MPN: 582509C1

5331-01-494-9213 (5-821-N304-75)

NIIN: 01-494-9213
In stock
NSN: 5331-01-494-9213
FSC Code: 5331
MPN: 5821N30475

5331-00-137-3293 (A-A-55801)

NIIN: 00-137-3293
In stock
NSN: 5331-00-137-3293
FSC Code: 5331
MPN: AA55801

5331-01-507-3598 (5821-1529)

NIIN: 01-507-3598
In stock
NSN: 5331-01-507-3598
FSC Code: 5331
MPN: 58211529

5331-00-883-8743 (A-A-55549-11)

NIIN: 00-883-8743
In stock
NSN: 5331-00-883-8743
FSC Code: 5331
MPN: AA5554911

5331-01-507-3597 (5820-9229)

NIIN: 01-507-3597
In stock
NSN: 5331-01-507-3597
FSC Code: 5331
MPN: 58209229

5331-00-942-7564 (AA4825-161D15)

NIIN: 00-942-7564
In stock
NSN: 5331-00-942-7564
FSC Code: 5331
MPN: AA4825161D15

5331-00-867-6656 (AA4825-1211D81)

NIIN: 00-867-6656
In stock
NSN: 5331-00-867-6656
FSC Code: 5331
MPN: AA48251211D81

5331-01-310-3985 (AA2813-024)

NIIN: 01-310-3985
In stock
NSN: 5331-01-310-3985
FSC Code: 5331
MPN: AA2813024

5331-00-752-8805 (AA2871-014PCALL)

NIIN: 00-752-8805
In stock
NSN: 5331-00-752-8805
FSC Code: 5331
MPN: AA2871014PCALL

5331-00-763-3206 (AA2899-122)

NIIN: 00-763-3206
In stock
NSN: 5331-00-763-3206
FSC Code: 5331
MPN: AA2899122

5331-01-309-7747 (AA2813-016)

NIIN: 01-309-7747
In stock
NSN: 5331-01-309-7747
FSC Code: 5331
MPN: AA2813016

5331-01-215-9653 (AA1504-8804)

NIIN: 01-215-9653
In stock
NSN: 5331-01-215-9653
FSC Code: 5331
MPN: AA15048804

5331-01-215-9652 (AA1504-8843)

NIIN: 01-215-9652
In stock
NSN: 5331-01-215-9652
FSC Code: 5331
MPN: AA15048843

5331-00-953-1883 (AA1574-12D130)

NIIN: 00-953-1883
In stock
NSN: 5331-00-953-1883
FSC Code: 5331
MPN: AA157412D130

5331-01-444-8352 (581-6405749)

NIIN: 01-444-8352
In stock
NSN: 5331-01-444-8352
FSC Code: 5331
MPN: 5816405749

5331-00-008-2198 (A9TH1011)

NIIN: 00-008-2198
In stock
NSN: 5331-00-008-2198
FSC Code: 5331
MPN: A9TH1011

5331-00-155-7017 (A9SR725-80)

NIIN: 00-155-7017
In stock
NSN: 5331-00-155-7017
FSC Code: 5331
MPN: A9SR72580

5331-01-137-5723 (A9722)

NIIN: 01-137-5723
In stock
NSN: 5331-01-137-5723
FSC Code: 5331
MPN: A9722

5331-01-171-6305 (A9688)

NIIN: 01-171-6305
In stock
NSN: 5331-01-171-6305
FSC Code: 5331
MPN: A9688

5331-00-126-5333 (A9646)

NIIN: 00-126-5333
In stock
NSN: 5331-00-126-5333
FSC Code: 5331
MPN: A9646

5331-01-222-9804 (A-9515)

NIIN: 01-222-9804
In stock
NSN: 5331-01-222-9804
FSC Code: 5331
MPN: A9515

5331-01-222-9803 (A-9476)

NIIN: 01-222-9803
In stock
NSN: 5331-01-222-9803
FSC Code: 5331
MPN: A9476

5331-01-222-9805 (A-9516)

NIIN: 01-222-9805
In stock
NSN: 5331-01-222-9805
FSC Code: 5331
MPN: A9516

5331-01-146-0499 (A942350-11)

NIIN: 01-146-0499
In stock
NSN: 5331-01-146-0499
FSC Code: 5331
MPN: A94235011

5331-01-481-8848 (58-1009-71)

NIIN: 01-481-8848
In stock
NSN: 5331-01-481-8848
FSC Code: 5331
MPN: 58100971

5331-01-194-0471 (A-911)

NIIN: 01-194-0471
In stock
NSN: 5331-01-194-0471
FSC Code: 5331
MPN: A911

5331-01-194-4704 (A907)

NIIN: 01-194-4704
In stock
NSN: 5331-01-194-4704
FSC Code: 5331
MPN: A907

5331-01-545-1572 (58-0765-71)

NIIN: 01-545-1572
In stock
NSN: 5331-01-545-1572
FSC Code: 5331
MPN: 58076571

5331-01-285-4803 (A906C-111)

NIIN: 01-285-4803
In stock
NSN: 5331-01-285-4803
FSC Code: 5331
MPN: A906C111

5331-01-194-4703 (A-905)

NIIN: 01-194-4703
In stock
NSN: 5331-01-194-4703
FSC Code: 5331
MPN: A905

5331-01-195-1513 (A-906)

NIIN: 01-195-1513
In stock
NSN: 5331-01-195-1513
FSC Code: 5331
MPN: A906

5331-00-429-1212 (A9000-503)

NIIN: 00-429-1212
In stock
NSN: 5331-00-429-1212
FSC Code: 5331
MPN: A9000503

5331-00-057-4003 (A8962)

NIIN: 00-057-4003
In stock
NSN: 5331-00-057-4003
FSC Code: 5331
MPN: A8962

5331-01-518-0819 (580-046)

NIIN: 01-518-0819
In stock
NSN: 5331-01-518-0819
FSC Code: 5331
MPN: 580046

5331-01-563-3492 (58-0014)

NIIN: 01-563-3492
In stock
NSN: 5331-01-563-3492
FSC Code: 5331
MPN: 580014

5331-01-483-1757 (PM.58.0719.71)

NIIN: 01-483-1757
In stock
NSN: 5331-01-483-1757
FSC Code: 5331
MPN: PM58071971

5331-01-483-2769 (PM.58.0976.71)

NIIN: 01-483-2769
In stock
NSN: 5331-01-483-2769
FSC Code: 5331
MPN: PM58097671

5331-01-258-2596 (A8788)

NIIN: 01-258-2596
In stock
NSN: 5331-01-258-2596
FSC Code: 5331
MPN: A8788

5331-01-571-0321 (57K6472)

NIIN: 01-571-0321
In stock
NSN: 5331-01-571-0321
FSC Code: 5331
MPN: 57K6472

5331-01-172-1853 (A848X9)

NIIN: 01-172-1853
In stock
NSN: 5331-01-172-1853
FSC Code: 5331
MPN: A848X9

5331-01-172-1854 (A848X10)

NIIN: 01-172-1854
In stock
NSN: 5331-01-172-1854
FSC Code: 5331
MPN: A848X10

5331-01-267-1176 (A848X002)

NIIN: 01-267-1176
In stock
NSN: 5331-01-267-1176
FSC Code: 5331
MPN: A848X002

5331-01-467-8738 (C-3317-011)

NIIN: 01-467-8738
In stock
NSN: 5331-01-467-8738
FSC Code: 5331
MPN: C3317011

5331-01-272-7360 (A841106-71)

NIIN: 01-272-7360
In stock
NSN: 5331-01-272-7360
FSC Code: 5331
MPN: A84110671

5331-00-943-9253 (A837X17)

NIIN: 00-943-9253
In stock
NSN: 5331-00-943-9253
FSC Code: 5331
MPN: A837X17

5331-01-304-1148 (A8241-403)

NIIN: 01-304-1148
In stock
NSN: 5331-01-304-1148
FSC Code: 5331
MPN: A8241403

5331-01-304-1145 (A8241-403)

NIIN: 01-304-1145
In stock
NSN: 5331-01-304-1145
FSC Code: 5331
MPN: A8241403