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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.

5331-01-274-8072 (48690878)

NIIN: 01-274-8072
In stock
NSN: 5331-01-274-8072
FSC Code: 5331
MPN: 48690878

5331-01-297-3004 (48691029)

NIIN: 01-297-3004
In stock
NSN: 5331-01-297-3004
FSC Code: 5331
MPN: 48691029

5331-01-301-7763 (49036500)

NIIN: 01-301-7763
In stock
NSN: 5331-01-301-7763
FSC Code: 5331
MPN: 49036500

5331-01-102-4354 (50051243)

NIIN: 01-102-4354
In stock
NSN: 5331-01-102-4354
FSC Code: 5331
MPN: 50051243

5331-01-070-7136 (50153800)

NIIN: 01-070-7136
In stock
NSN: 5331-01-070-7136
FSC Code: 5331
MPN: 50153800

5331-01-077-3913 (50154100)

NIIN: 01-077-3913
In stock
NSN: 5331-01-077-3913
FSC Code: 5331
MPN: 50154100

5331-01-080-1643 (50153700)

NIIN: 01-080-1643
In stock
NSN: 5331-01-080-1643
FSC Code: 5331
MPN: 50153700

5331-01-079-9960 (50154000)

NIIN: 01-079-9960
In stock
NSN: 5331-01-079-9960
FSC Code: 5331
MPN: 50154000

5331-01-070-1123 (50154200)

NIIN: 01-070-1123
In stock
NSN: 5331-01-070-1123
FSC Code: 5331
MPN: 50154200

5331-01-246-8453 (50192400)

NIIN: 01-246-8453
In stock
NSN: 5331-01-246-8453
FSC Code: 5331
MPN: 50192400

5331-01-274-5680 (50167500)

NIIN: 01-274-5680
In stock
NSN: 5331-01-274-5680
FSC Code: 5331
MPN: 50167500

5331-01-336-9375 (51103810)

NIIN: 01-336-9375
In stock
NSN: 5331-01-336-9375
FSC Code: 5331
MPN: 51103810

5331-01-337-0859 (51169241)

NIIN: 01-337-0859
In stock
NSN: 5331-01-337-0859
FSC Code: 5331
MPN: 51169241

5331-01-337-0858 (51169233)

NIIN: 01-337-0858
In stock
NSN: 5331-01-337-0858
FSC Code: 5331
MPN: 51169233

5331-01-336-9376 (51103869)

NIIN: 01-336-9376
In stock
NSN: 5331-01-336-9376
FSC Code: 5331
MPN: 51103869

5331-01-137-9592 (51767101)

NIIN: 01-137-9592
In stock
NSN: 5331-01-137-9592
FSC Code: 5331
MPN: 51767101

5331-01-274-3105 (56742552)

NIIN: 01-274-3105
In stock
NSN: 5331-01-274-3105
FSC Code: 5331
MPN: 56742552

5331-01-173-3417 (58201515)

NIIN: 01-173-3417
In stock
NSN: 5331-01-173-3417
FSC Code: 5331
MPN: 58201515

5331-01-233-7790 (60108011)

NIIN: 01-233-7790
In stock
NSN: 5331-01-233-7790
FSC Code: 5331
MPN: 60108011

5331-01-233-7789 (60108910)

NIIN: 01-233-7789
In stock
NSN: 5331-01-233-7789
FSC Code: 5331
MPN: 60108910

5331-01-315-9464 (62102001)

NIIN: 01-315-9464
In stock
NSN: 5331-01-315-9464
FSC Code: 5331
MPN: 62102001

5331-01-311-6981 (64300095)

NIIN: 01-311-6981
In stock
NSN: 5331-01-311-6981
FSC Code: 5331
MPN: 64300095

5331-00-471-5637 (68759530)

NIIN: 00-471-5637
In stock
NSN: 5331-00-471-5637
FSC Code: 5331
MPN: 68759530

5331-01-191-2961 (68139420)

NIIN: 01-191-2961
In stock
NSN: 5331-01-191-2961
FSC Code: 5331
MPN: 68139420

5331-00-471-5638 (68766313)

NIIN: 00-471-5638
In stock
NSN: 5331-00-471-5638
FSC Code: 5331
MPN: 68766313

5331-00-471-5635 (68764320)

NIIN: 00-471-5635
In stock
NSN: 5331-00-471-5635
FSC Code: 5331
MPN: 68764320

5331-00-471-5636 (68764330)

NIIN: 00-471-5636
In stock
NSN: 5331-00-471-5636
FSC Code: 5331
MPN: 68764330

5331-00-471-5639 (68766501)

NIIN: 00-471-5639
In stock
NSN: 5331-00-471-5639
FSC Code: 5331
MPN: 68766501

5331-01-142-2761 (70184225)

NIIN: 01-142-2761
In stock
NSN: 5331-01-142-2761
FSC Code: 5331
MPN: 70184225

5331-01-249-4060 (70708390)

NIIN: 01-249-4060
In stock
NSN: 5331-01-249-4060
FSC Code: 5331
MPN: 70708390

5331-00-811-1058 (70921205)

NIIN: 00-811-1058
In stock
NSN: 5331-00-811-1058
FSC Code: 5331
MPN: 70921205

5331-01-133-3200 (70923565)

NIIN: 01-133-3200
In stock
NSN: 5331-01-133-3200
FSC Code: 5331
MPN: 70923565

5331-00-110-8751 (70923590)

NIIN: 00-110-8751
In stock
NSN: 5331-00-110-8751
FSC Code: 5331
MPN: 70923590

5331-01-133-5339 (70923585)

NIIN: 01-133-5339
In stock
NSN: 5331-01-133-5339
FSC Code: 5331
MPN: 70923585

5331-00-461-5760 (70923664)

NIIN: 00-461-5760
In stock
NSN: 5331-00-461-5760
FSC Code: 5331
MPN: 70923664

5331-00-406-5276 (70923810)

NIIN: 00-406-5276
In stock
NSN: 5331-00-406-5276
FSC Code: 5331
MPN: 70923810

5331-01-312-9924 (70923592)

NIIN: 01-312-9924
In stock
NSN: 5331-01-312-9924
FSC Code: 5331
MPN: 70923592

5331-00-240-6893 (70923831)

NIIN: 00-240-6893
In stock
NSN: 5331-00-240-6893
FSC Code: 5331
MPN: 70923831

5331-01-277-0170 (70923664)

NIIN: 01-277-0170
In stock
NSN: 5331-01-277-0170
FSC Code: 5331
MPN: 70923664

5331-00-518-5530 (70923649)

NIIN: 00-518-5530
In stock
NSN: 5331-00-518-5530
FSC Code: 5331
MPN: 70923649

5331-01-315-9465 (70923815)

NIIN: 01-315-9465
In stock
NSN: 5331-01-315-9465
FSC Code: 5331
MPN: 70923815

5331-01-277-0940 (70923931)

NIIN: 01-277-0940
In stock
NSN: 5331-01-277-0940
FSC Code: 5331
MPN: 70923931

5331-01-142-4811 (70923853)

NIIN: 01-142-4811
In stock
NSN: 5331-01-142-4811
FSC Code: 5331
MPN: 70923853

5331-01-308-1210 (70924772)

NIIN: 01-308-1210
In stock
NSN: 5331-01-308-1210
FSC Code: 5331
MPN: 70924772

5331-01-142-2760 (70925482)

NIIN: 01-142-2760
In stock
NSN: 5331-01-142-2760
FSC Code: 5331
MPN: 70925482

5331-01-313-4956 (70926561)

NIIN: 01-313-4956
In stock
NSN: 5331-01-313-4956
FSC Code: 5331
MPN: 70926561

5331-01-142-4812 (70925651)

NIIN: 01-142-4812
In stock
NSN: 5331-01-142-4812
FSC Code: 5331
MPN: 70925651

5331-01-313-4957 (70928062)

NIIN: 01-313-4957
In stock
NSN: 5331-01-313-4957
FSC Code: 5331
MPN: 70928062