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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.

5331-01-312-0622 (880210203)

NIIN: 01-312-0622
In stock
NSN: 5331-01-312-0622
FSC Code: 5331
MPN: 880210203

5331-01-312-0623 (886020321)

NIIN: 01-312-0623
In stock
NSN: 5331-01-312-0623
FSC Code: 5331
MPN: 886020321

5331-01-137-6899 (870302701)

NIIN: 01-137-6899
In stock
NSN: 5331-01-137-6899
FSC Code: 5331
MPN: 870302701

5331-01-191-7217 (900131037)

NIIN: 01-191-7217
In stock
NSN: 5331-01-191-7217
FSC Code: 5331
MPN: 900131037

5331-01-191-7218 (900131060)

NIIN: 01-191-7218
In stock
NSN: 5331-01-191-7218
FSC Code: 5331
MPN: 900131060

5331-01-283-5420 (902010400)

NIIN: 01-283-5420
In stock
NSN: 5331-01-283-5420
FSC Code: 5331
MPN: 902010400

5331-00-267-9511 (955096010)

NIIN: 00-267-9511
In stock
NSN: 5331-00-267-9511
FSC Code: 5331
MPN: 955096010

5331-00-163-8154 (1000250073)

NIIN: 00-163-8154
In stock
NSN: 5331-00-163-8154
FSC Code: 5331
MPN: 1000250073

5331-00-071-2204 (1000118810)

NIIN: 00-071-2204
In stock
NSN: 5331-00-071-2204
FSC Code: 5331
MPN: 1000118810

5331-00-215-7613 (1001091452)

NIIN: 00-215-7613
In stock
NSN: 5331-00-215-7613
FSC Code: 5331
MPN: 1001091452

5331-00-412-3075 (1001061452)

NIIN: 00-412-3075
In stock
NSN: 5331-00-412-3075
FSC Code: 5331
MPN: 1001061452

5331-01-182-5257 (1001558810)

NIIN: 01-182-5257
In stock
NSN: 5331-01-182-5257
FSC Code: 5331
MPN: 1001558810

5331-01-263-2689 (1001790000)

NIIN: 01-263-2689
In stock
NSN: 5331-01-263-2689
FSC Code: 5331
MPN: 1001790000

5331-00-008-1408 (1002281630)

NIIN: 00-008-1408
In stock
NSN: 5331-00-008-1408
FSC Code: 5331
MPN: 1002281630

5331-01-173-0155 (1002720455)

NIIN: 01-173-0155
In stock
NSN: 5331-01-173-0155
FSC Code: 5331
MPN: 1002720455

5331-00-482-7963 (1002368810)

NIIN: 00-482-7963
In stock
NSN: 5331-00-482-7963
FSC Code: 5331
MPN: 1002368810

5331-00-579-6861 (1002360270)

NIIN: 00-579-6861
In stock
NSN: 5331-00-579-6861
FSC Code: 5331
MPN: 1002360270

5331-01-182-5256 (1005380270)

NIIN: 01-182-5256
In stock
NSN: 5331-01-182-5256
FSC Code: 5331
MPN: 1005380270

5331-01-300-5637 (1006320032)

NIIN: 01-300-5637
In stock
NSN: 5331-01-300-5637
FSC Code: 5331
MPN: 1006320032

5331-01-183-8765 (1005428810)

NIIN: 01-183-8765
In stock
NSN: 5331-01-183-8765
FSC Code: 5331
MPN: 1005428810

5331-01-211-7350 (1011617009)

NIIN: 01-211-7350
In stock
NSN: 5331-01-211-7350
FSC Code: 5331
MPN: 1011617009

5331-00-048-6888 (1008305614)

NIIN: 00-048-6888
In stock
NSN: 5331-00-048-6888
FSC Code: 5331
MPN: 1008305614

5331-01-268-0159 (1096230160)

NIIN: 01-268-0159
In stock
NSN: 5331-01-268-0159
FSC Code: 5331
MPN: 1096230160

5331-01-173-2192 (1092720392)

NIIN: 01-173-2192
In stock
NSN: 5331-01-173-2192
FSC Code: 5331
MPN: 1092720392

5331-01-224-8063 (1096232150)

NIIN: 01-224-8063
In stock
NSN: 5331-01-224-8063
FSC Code: 5331
MPN: 1096232150

5331-01-173-2193 (1092721092)

NIIN: 01-173-2193
In stock
NSN: 5331-01-173-2193
FSC Code: 5331
MPN: 1092721092

5331-01-226-8686 (1096230130)

NIIN: 01-226-8686
In stock
NSN: 5331-01-226-8686
FSC Code: 5331
MPN: 1096230130

5331-00-494-2516 (1102520001)

NIIN: 00-494-2516
In stock
NSN: 5331-00-494-2516
FSC Code: 5331
MPN: 1102520001

5331-01-274-8075 (1102956142)

NIIN: 01-274-8075
In stock
NSN: 5331-01-274-8075
FSC Code: 5331
MPN: 1102956142

5331-01-174-1500 (1120210001)

NIIN: 01-174-1500
In stock
NSN: 5331-01-174-1500
FSC Code: 5331
MPN: 1120210001

5331-01-172-4651 (1152720892)

NIIN: 01-172-4651
In stock
NSN: 5331-01-172-4651
FSC Code: 5331
MPN: 1152720892

5331-01-172-4650 (1152720655)

NIIN: 01-172-4650
In stock
NSN: 5331-01-172-4650
FSC Code: 5331
MPN: 1152720655

5331-01-173-9216 (1152721092)

NIIN: 01-173-9216
In stock
NSN: 5331-01-173-9216
FSC Code: 5331
MPN: 1152721092

5331-01-173-9220 (1152721292)

NIIN: 01-173-9220
In stock
NSN: 5331-01-173-9220
FSC Code: 5331
MPN: 1152721292

5331-01-173-9217 (1152721192)

NIIN: 01-173-9217
In stock
NSN: 5331-01-173-9217
FSC Code: 5331
MPN: 1152721192

5331-01-173-9219 (1152721492)

NIIN: 01-173-9219
In stock
NSN: 5331-01-173-9219
FSC Code: 5331
MPN: 1152721492

5331-01-173-9221 (1153040160)

NIIN: 01-173-9221
In stock
NSN: 5331-01-173-9221
FSC Code: 5331
MPN: 1153040160

5331-01-270-1628 (1230203001)

NIIN: 01-270-1628
In stock
NSN: 5331-01-270-1628
FSC Code: 5331
MPN: 1230203001

5331-01-301-4991 (1262770855)

NIIN: 01-301-4991
In stock
NSN: 5331-01-301-4991
FSC Code: 5331
MPN: 1262770855

5331-01-014-2150 (1302342390)

NIIN: 01-014-2150
In stock
NSN: 5331-01-014-2150
FSC Code: 5331
MPN: 1302342390

5331-01-320-9579 (1350797057)

NIIN: 01-320-9579
In stock
NSN: 5331-01-320-9579
FSC Code: 5331
MPN: 1350797057

5331-01-276-8442 (1402666000)

NIIN: 01-276-8442
In stock
NSN: 5331-01-276-8442
FSC Code: 5331
MPN: 1402666000

5331-00-450-4011 (1401416000)

NIIN: 00-450-4011
In stock
NSN: 5331-00-450-4011
FSC Code: 5331
MPN: 1401416000

5331-01-246-2542 (1401406000)

NIIN: 01-246-2542
In stock
NSN: 5331-01-246-2542
FSC Code: 5331
MPN: 1401406000

5331-00-499-3475 (1420210010)

NIIN: 00-499-3475
In stock
NSN: 5331-00-499-3475
FSC Code: 5331
MPN: 1420210010

5331-01-323-8448 (1410210018)

NIIN: 01-323-8448
In stock
NSN: 5331-01-323-8448
FSC Code: 5331
MPN: 1410210018

5331-00-499-3524 (1420206001)

NIIN: 00-499-3524
In stock
NSN: 5331-00-499-3524
FSC Code: 5331
MPN: 1420206001

5331-01-286-0798 (1460210301)

NIIN: 01-286-0798
In stock
NSN: 5331-01-286-0798
FSC Code: 5331
MPN: 1460210301