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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.

5331-01-558-9616 (31525-021)

NIIN: 01-558-9616
In stock
NSN: 5331-01-558-9616
FSC Code: 5331
MPN: 31525021

5331-01-558-9617 (31525-060)

NIIN: 01-558-9617
In stock
NSN: 5331-01-558-9617
FSC Code: 5331
MPN: 31525060

5331-01-472-5083 (31525-007)

NIIN: 01-472-5083
In stock
NSN: 5331-01-472-5083
FSC Code: 5331
MPN: 31525007

5331-01-044-0380 (710-1516-9)

NIIN: 01-044-0380
In stock
NSN: 5331-01-044-0380
FSC Code: 5331
MPN: 71015169

5331-01-040-4049 (710-1516-1)

NIIN: 01-040-4049
In stock
NSN: 5331-01-040-4049
FSC Code: 5331
MPN: 71015161

5331-01-430-8846 (314-B)

NIIN: 01-430-8846
In stock
NSN: 5331-01-430-8846
FSC Code: 5331
MPN: 314B

5331-21-914-3718 (3600-29-13-15)

NIIN: 21-914-3718
In stock
NSN: 5331-21-914-3718
FSC Code: 5331
MPN: 3600291315

5331-21-914-3719 (3600-29-13-15)

NIIN: 21-914-3719
In stock
NSN: 5331-21-914-3719
FSC Code: 5331
MPN: 3600291315

5331-21-914-3717 (3600-29-13-15)

NIIN: 21-914-3717
In stock
NSN: 5331-21-914-3717
FSC Code: 5331
MPN: 3600291315

5331-01-369-7319 (D-3141PC5)

NIIN: 01-369-7319
In stock
NSN: 5331-01-369-7319
FSC Code: 5331
MPN: D3141PC5

5331-01-369-5830 (D-3141PC6)

NIIN: 01-369-5830
In stock
NSN: 5331-01-369-5830
FSC Code: 5331
MPN: D3141PC6

5331-01-369-5831 (D-3141PC15)

NIIN: 01-369-5831
In stock
NSN: 5331-01-369-5831
FSC Code: 5331
MPN: D3141PC15

5331-01-369-5832 (D-3141PC18)

NIIN: 01-369-5832
In stock
NSN: 5331-01-369-5832
FSC Code: 5331
MPN: D3141PC18

5331-01-093-0647 (70A102)

NIIN: 01-093-0647
In stock
NSN: 5331-01-093-0647
FSC Code: 5331
MPN: 70A102

5331-01-282-7429 (70A04A08024)

NIIN: 01-282-7429
In stock
NSN: 5331-01-282-7429
FSC Code: 5331
MPN: 70A04A08024

5331-01-453-9036 (PL-E185B001)

NIIN: 01-453-9036
In stock
NSN: 5331-01-453-9036
FSC Code: 5331
MPN: PLE185B001

5331-01-222-5942 (70975-003)

NIIN: 01-222-5942
In stock
NSN: 5331-01-222-5942
FSC Code: 5331
MPN: 70975003

5331-01-220-7564 (70975-001)

NIIN: 01-220-7564
In stock
NSN: 5331-01-220-7564
FSC Code: 5331
MPN: 70975001

5331-01-223-7141 (70975-002)

NIIN: 01-223-7141
In stock
NSN: 5331-01-223-7141
FSC Code: 5331
MPN: 70975002

5331-01-306-6584 (70-95-546)

NIIN: 01-306-6584
In stock
NSN: 5331-01-306-6584
FSC Code: 5331
MPN: 7095546

5331-01-306-6583 (70-95-545)

NIIN: 01-306-6583
In stock
NSN: 5331-01-306-6583
FSC Code: 5331
MPN: 7095545

5331-01-369-7016 (D-3139PC6)

NIIN: 01-369-7016
In stock
NSN: 5331-01-369-7016
FSC Code: 5331
MPN: D3139PC6

5331-01-369-5829 (D-3139PC5)

NIIN: 01-369-5829
In stock
NSN: 5331-01-369-5829
FSC Code: 5331
MPN: D3139PC5

5331-01-271-6765 (7093E13)

NIIN: 01-271-6765
In stock
NSN: 5331-01-271-6765
FSC Code: 5331
MPN: 7093E13

5331-01-210-0642 (7092E61-048)

NIIN: 01-210-0642
In stock
NSN: 5331-01-210-0642
FSC Code: 5331
MPN: 7092E61048

5331-01-252-5111 (70928953-2)

NIIN: 01-252-5111
In stock
NSN: 5331-01-252-5111
FSC Code: 5331
MPN: 709289532

5331-01-054-2373 (70929122-3)

NIIN: 01-054-2373
In stock
NSN: 5331-01-054-2373
FSC Code: 5331
MPN: 709291223

5331-01-021-5113 (70923951-1)

NIIN: 01-021-5113
In stock
NSN: 5331-01-021-5113
FSC Code: 5331
MPN: 709239511

5331-00-548-6169 (708878-122)

NIIN: 00-548-6169
In stock
NSN: 5331-00-548-6169
FSC Code: 5331
MPN: 708878122

5331-00-498-6849 (708878-111)

NIIN: 00-498-6849
In stock
NSN: 5331-00-498-6849
FSC Code: 5331
MPN: 708878111

5331-00-605-1782 (708878-129)

NIIN: 00-605-1782
In stock
NSN: 5331-00-605-1782
FSC Code: 5331
MPN: 708878129

5331-01-554-1814 (31-300-20369)

NIIN: 01-554-1814
In stock
NSN: 5331-01-554-1814
FSC Code: 5331
MPN: 3130020369

5331-01-293-7861 (70-75343-024)

NIIN: 01-293-7861
In stock
NSN: 5331-01-293-7861
FSC Code: 5331
MPN: 7075343024

5331-00-491-7664 (707524-232)

NIIN: 00-491-7664
In stock
NSN: 5331-00-491-7664
FSC Code: 5331
MPN: 707524232

5331-01-293-7860 (70-74012-024)

NIIN: 01-293-7860
In stock
NSN: 5331-01-293-7860
FSC Code: 5331
MPN: 7074012024

5331-00-718-3622 (707253R1)

NIIN: 00-718-3622
In stock
NSN: 5331-00-718-3622
FSC Code: 5331
MPN: 707253R1

5331-01-215-5144 (70721-11)

NIIN: 01-215-5144
In stock
NSN: 5331-01-215-5144
FSC Code: 5331
MPN: 7072111

5331-01-078-4333 (70721-57)

NIIN: 01-078-4333
In stock
NSN: 5331-01-078-4333
FSC Code: 5331
MPN: 7072157

5331-00-893-9154 (70721-10)

NIIN: 00-893-9154
In stock
NSN: 5331-00-893-9154
FSC Code: 5331
MPN: 7072110

5331-01-006-9483 (70721-117)

NIIN: 01-006-9483
In stock
NSN: 5331-01-006-9483
FSC Code: 5331
MPN: 70721117

5331-01-215-5143 (70721-79)

NIIN: 01-215-5143
In stock
NSN: 5331-01-215-5143
FSC Code: 5331
MPN: 7072179

5331-01-524-4536 (3-126F-SS-17606-01)

NIIN: 01-524-4536
In stock
NSN: 5331-01-524-4536
FSC Code: 5331
MPN: 3126FSS1760601

5331-00-923-8057 (706WA38-11)

NIIN: 00-923-8057
In stock
NSN: 5331-00-923-8057
FSC Code: 5331
MPN: 706WA3811

5331-01-102-1897 (706WA58-11)

NIIN: 01-102-1897
In stock
NSN: 5331-01-102-1897
FSC Code: 5331
MPN: 706WA5811

5331-00-049-6084 (706995-2)

NIIN: 00-049-6084
In stock
NSN: 5331-00-049-6084
FSC Code: 5331
MPN: 7069952

5331-01-264-7306 (7063850-X14X-8)

NIIN: 01-264-7306
In stock
NSN: 5331-01-264-7306
FSC Code: 5331
MPN: 7063850X14X8

5331-01-315-8749 (706348-1)

NIIN: 01-315-8749
In stock
NSN: 5331-01-315-8749
FSC Code: 5331
MPN: 7063481

5331-01-348-8336 (312)

NIIN: 01-348-8336
In stock
NSN: 5331-01-348-8336
FSC Code: 5331
MPN: 312