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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.

5331-01-335-2792 (9407K21)

NIIN: 01-335-2792
In stock
NSN: 5331-01-335-2792
FSC Code: 5331
MPN: 9407K21

5331-01-312-7169 (9407K14-1)

NIIN: 01-312-7169
In stock
NSN: 5331-01-312-7169
FSC Code: 5331
MPN: 9407K141

5331-01-196-3834 (9-4054-80-427)

NIIN: 01-196-3834
In stock
NSN: 5331-01-196-3834
FSC Code: 5331
MPN: 9405480427

5331-01-267-9306 (9-4054-80-410)

NIIN: 01-267-9306
In stock
NSN: 5331-01-267-9306
FSC Code: 5331
MPN: 9405480410

5331-01-267-9305 (9-4054-80-344)

NIIN: 01-267-9305
In stock
NSN: 5331-01-267-9305
FSC Code: 5331
MPN: 9405480344

5331-01-267-9307 (9-4054-80-419)

NIIN: 01-267-9307
In stock
NSN: 5331-01-267-9307
FSC Code: 5331
MPN: 9405480419

5331-01-267-6715 (9-4045-80-78)

NIIN: 01-267-6715
In stock
NSN: 5331-01-267-6715
FSC Code: 5331
MPN: 940458078

5331-01-195-8879 (940388C1)

NIIN: 01-195-8879
In stock
NSN: 5331-01-195-8879
FSC Code: 5331
MPN: 940388C1

5331-01-507-4774 (5017-027)

NIIN: 01-507-4774
In stock
NSN: 5331-01-507-4774
FSC Code: 5331
MPN: 5017027

5331-01-551-9314 (501-6937308PC19)

NIIN: 01-551-9314
In stock
NSN: 5331-01-551-9314
FSC Code: 5331
MPN: 5016937308PC19

5331-01-394-5996 (MIL-G-22050GRADE3SIZEAS568-158)

NIIN: 01-394-5996
In stock
NSN: 5331-01-394-5996
FSC Code: 5331
MPN: MILG22050GRADE3SIZEAS568158

5331-01-446-7945 (501-6603008)

NIIN: 01-446-7945
In stock
NSN: 5331-01-446-7945
FSC Code: 5331
MPN: 5016603008

5331-00-298-0570 (940179-3)

NIIN: 00-298-0570
In stock
NSN: 5331-00-298-0570
FSC Code: 5331
MPN: 9401793

5331-00-531-4683 (9400586-1)

NIIN: 00-531-4683
In stock
NSN: 5331-00-531-4683
FSC Code: 5331
MPN: 94005861

5331-01-332-1446 (93-T57-4)

NIIN: 01-332-1446
In stock
NSN: 5331-01-332-1446
FSC Code: 5331
MPN: 93T574

5331-01-534-3439 (NO. 2 50155AANO2)

NIIN: 01-534-3439
In stock
NSN: 5331-01-534-3439
FSC Code: 5331
MPN: NO250155AANO2

5331-01-127-1366 (939747C1)

NIIN: 01-127-1366
In stock
NSN: 5331-01-127-1366
FSC Code: 5331
MPN: 939747C1

5331-01-195-1503 (939745C1)

NIIN: 01-195-1503
In stock
NSN: 5331-01-195-1503
FSC Code: 5331
MPN: 939745C1

5331-01-322-8648 (9382-34-175)

NIIN: 01-322-8648
In stock
NSN: 5331-01-322-8648
FSC Code: 5331
MPN: 938234175

5331-99-806-9182 (SOR15.54X2.62-90NBR)

NIIN: 99-806-9182
In stock
NSN: 5331-99-806-9182
FSC Code: 5331
MPN: SOR1554X26290NBR

5331-00-007-6092 (9-364-100052)

NIIN: 00-007-6092
In stock
NSN: 5331-00-007-6092
FSC Code: 5331
MPN: 9364100052

5331-01-225-8562 (93602-870040)

NIIN: 01-225-8562
In stock
NSN: 5331-01-225-8562
FSC Code: 5331
MPN: 93602870040

5331-01-277-4872 (93601-810020)

NIIN: 01-277-4872
In stock
NSN: 5331-01-277-4872
FSC Code: 5331
MPN: 93601810020

5331-01-277-4871 (93602-810040)

NIIN: 01-277-4871
In stock
NSN: 5331-01-277-4871
FSC Code: 5331
MPN: 93602810040

5331-01-291-5633 (93602-870040)

NIIN: 01-291-5633
In stock
NSN: 5331-01-291-5633
FSC Code: 5331
MPN: 93602870040

5331-01-044-3063 (9353-00-0700)

NIIN: 01-044-3063
In stock
NSN: 5331-01-044-3063
FSC Code: 5331
MPN: 9353000700

5331-01-531-3803 (50085-904)

NIIN: 01-531-3803
In stock
NSN: 5331-01-531-3803
FSC Code: 5331
MPN: 50085904

5331-01-531-3802 (50085-903)

NIIN: 01-531-3802
In stock
NSN: 5331-01-531-3802
FSC Code: 5331
MPN: 50085903

5331-00-558-1432 (934-114)

NIIN: 00-558-1432
In stock
NSN: 5331-00-558-1432
FSC Code: 5331
MPN: 934114

5331-00-821-1519 (933A234P1)

NIIN: 00-821-1519
In stock
NSN: 5331-00-821-1519
FSC Code: 5331
MPN: 933A234P1

5331-01-285-4555 (9338491-1)

NIIN: 01-285-4555
In stock
NSN: 5331-01-285-4555
FSC Code: 5331
MPN: 93384911

5331-01-178-5972 (933786C1)

NIIN: 01-178-5972
In stock
NSN: 5331-01-178-5972
FSC Code: 5331
MPN: 933786C1

5331-00-647-3123 (9337-329CL)

NIIN: 00-647-3123
In stock
NSN: 5331-00-647-3123
FSC Code: 5331
MPN: 9337329CL

5331-01-186-2694 (93324-125)

NIIN: 01-186-2694
In stock
NSN: 5331-01-186-2694
FSC Code: 5331
MPN: 93324125

5331-01-186-2699 (93324-152)

NIIN: 01-186-2699
In stock
NSN: 5331-01-186-2699
FSC Code: 5331
MPN: 93324152

5331-01-186-2693 (93324-162)

NIIN: 01-186-2693
In stock
NSN: 5331-01-186-2693
FSC Code: 5331
MPN: 93324162

5331-00-431-1855 (93324-148)

NIIN: 00-431-1855
In stock
NSN: 5331-00-431-1855
FSC Code: 5331
MPN: 93324148

5331-01-186-2696 (93324-127)

NIIN: 01-186-2696
In stock
NSN: 5331-01-186-2696
FSC Code: 5331
MPN: 93324127

5331-00-431-1853 (93324-141)

NIIN: 00-431-1853
In stock
NSN: 5331-00-431-1853
FSC Code: 5331
MPN: 93324141

5331-01-186-2698 (93324-129)

NIIN: 01-186-2698
In stock
NSN: 5331-01-186-2698
FSC Code: 5331
MPN: 93324129

5331-01-186-2697 (93324-128)

NIIN: 01-186-2697
In stock
NSN: 5331-01-186-2697
FSC Code: 5331
MPN: 93324128

5331-01-186-2689 (93324-013)

NIIN: 01-186-2689
In stock
NSN: 5331-01-186-2689
FSC Code: 5331
MPN: 93324013

5331-01-186-2695 (93324-126)

NIIN: 01-186-2695
In stock
NSN: 5331-01-186-2695
FSC Code: 5331
MPN: 93324126

5331-01-186-2692 (93324-122)

NIIN: 01-186-2692
In stock
NSN: 5331-01-186-2692
FSC Code: 5331
MPN: 93324122

5331-01-186-2691 (93324-120)

NIIN: 01-186-2691
In stock
NSN: 5331-01-186-2691
FSC Code: 5331
MPN: 93324120

5331-01-186-2690 (93324-114)

NIIN: 01-186-2690
In stock
NSN: 5331-01-186-2690
FSC Code: 5331
MPN: 93324114

5331-00-431-1851 (93324-022)

NIIN: 00-431-1851
In stock
NSN: 5331-00-431-1851
FSC Code: 5331
MPN: 93324022

5331-01-206-7316 (93324-011)

NIIN: 01-206-7316
In stock
NSN: 5331-01-206-7316
FSC Code: 5331
MPN: 93324011