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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.

5331-01-434-6980 (2-017C1185-70)

NIIN: 01-434-6980
In stock
NSN: 5331-01-434-6980
FSC Code: 5331
MPN: 2017C118570

5331-01-227-2799 (2401425-906)

NIIN: 01-227-2799
In stock
NSN: 5331-01-227-2799
FSC Code: 5331
MPN: 2401425906

5331-01-173-0869 (2401-442)

NIIN: 01-173-0869
In stock
NSN: 5331-01-173-0869
FSC Code: 5331
MPN: 2401442

5331-99-743-5109 (BS1806-217NBR)

NIIN: 99-743-5109
In stock
NSN: 5331-99-743-5109
FSC Code: 5331
MPN: BS1806217NBR

5331-99-844-6047 (0176-24)

NIIN: 99-844-6047
In stock
NSN: 5331-99-844-6047
FSC Code: 5331
MPN: 017624

5331-01-146-7167 (2401-442)

NIIN: 01-146-7167
In stock
NSN: 5331-01-146-7167
FSC Code: 5331
MPN: 2401442

5331-00-530-0567 (240-1687223-7)

NIIN: 00-530-0567
In stock
NSN: 5331-00-530-0567
FSC Code: 5331
MPN: 24016872237

5331-00-605-1559 (240-1785)

NIIN: 00-605-1559
In stock
NSN: 5331-00-605-1559
FSC Code: 5331
MPN: 2401785

5331-01-544-9133 (017BUNA70)

NIIN: 01-544-9133
In stock
NSN: 5331-01-544-9133
FSC Code: 5331
MPN: 017BUNA70

5331-01-312-6670 (2402861-1)

NIIN: 01-312-6670
In stock
NSN: 5331-01-312-6670
FSC Code: 5331
MPN: 24028611

5331-01-285-3172 (2403/0016)

NIIN: 01-285-3172
In stock
NSN: 5331-01-285-3172
FSC Code: 5331
MPN: 24030016

5331-01-347-2306 (6515-03-L00-0213)

NIIN: 01-347-2306
In stock
NSN: 5331-01-347-2306
FSC Code: 5331
MPN: 651503L000213

5331-01-012-4969 (2-40-47-071)

NIIN: 01-012-4969
In stock
NSN: 5331-01-012-4969
FSC Code: 5331
MPN: 24047071

5331-01-420-8783 (PL-M17-44640-D)

NIIN: 01-420-8783
In stock
NSN: 5331-01-420-8783
FSC Code: 5331
MPN: PLM1744640D

5331-14-265-3874 (01840C7000A21B6)

NIIN: 14-265-3874
In stock
NSN: 5331-14-265-3874
FSC Code: 5331
MPN: 01840C7000A21B6

5331-01-353-9385 (018432-SCR)

NIIN: 01-353-9385
In stock
NSN: 5331-01-353-9385
FSC Code: 5331
MPN: 018432SCR

5331-14-302-4958 (01864D5300A50D7)

NIIN: 14-302-4958
In stock
NSN: 5331-14-302-4958
FSC Code: 5331
MPN: 01864D5300A50D7

5331-01-497-3251 (018-7399)

NIIN: 01-497-3251
In stock
NSN: 5331-01-497-3251
FSC Code: 5331
MPN: 0187399

5331-14-503-6027 (01877B78G3U64C8)

NIIN: 14-503-6027
In stock
NSN: 5331-14-503-6027
FSC Code: 5331
MPN: 01877B78G3U64C8

5331-01-069-9924 (240-8308)

NIIN: 01-069-9924
In stock
NSN: 5331-01-069-9924
FSC Code: 5331
MPN: 2408308

5331-00-285-6870 (2409-1186)

NIIN: 00-285-6870
In stock
NSN: 5331-00-285-6870
FSC Code: 5331
MPN: 24091186

5331-00-663-7688 (2409-1194)

NIIN: 00-663-7688
In stock
NSN: 5331-00-663-7688
FSC Code: 5331
MPN: 24091194

5331-14-387-2572 (01900C5000A23B7)

NIIN: 14-387-2572
In stock
NSN: 5331-14-387-2572
FSC Code: 5331
MPN: 01900C5000A23B7

5331-14-390-8239 (I402056SR832-75A)

NIIN: 14-390-8239
In stock
NSN: 5331-14-390-8239
FSC Code: 5331
MPN: I402056SR83275A

5331-14-387-6602 (01900C5000A20B7)

NIIN: 14-387-6602
In stock
NSN: 5331-14-387-6602
FSC Code: 5331
MPN: 01900C5000A20B7

5331-00-856-6363 (240PS2988)

NIIN: 00-856-6363
In stock
NSN: 5331-00-856-6363
FSC Code: 5331
MPN: 240PS2988

5331-00-288-2034 (240S025)

NIIN: 00-288-2034
In stock
NSN: 5331-00-288-2034
FSC Code: 5331
MPN: 240S025

5331-01-088-8910 (241-04)

NIIN: 01-088-8910
In stock
NSN: 5331-01-088-8910
FSC Code: 5331
MPN: 24104

5331-01-067-3295 (24104A)

NIIN: 01-067-3295
In stock
NSN: 5331-01-067-3295
FSC Code: 5331
MPN: 24104A

5331-01-491-7717 (019-517)

NIIN: 01-491-7717
In stock
NSN: 5331-01-491-7717
FSC Code: 5331
MPN: 019517

5331-01-191-6074 (241-5750590)

NIIN: 01-191-6074
In stock
NSN: 5331-01-191-6074
FSC Code: 5331
MPN: 2415750590

5331-01-253-6595 (2415B201)

NIIN: 01-253-6595
In stock
NSN: 5331-01-253-6595
FSC Code: 5331
MPN: 2415B201

5331-00-090-8574 (2415A2)

NIIN: 00-090-8574
In stock
NSN: 5331-00-090-8574
FSC Code: 5331
MPN: 2415A2

5331-01-276-1514 (2416-448)

NIIN: 01-276-1514
In stock
NSN: 5331-01-276-1514
FSC Code: 5331
MPN: 2416448

5331-01-484-7567 (0198-124)

NIIN: 01-484-7567
In stock
NSN: 5331-01-484-7567
FSC Code: 5331
MPN: 0198124

5331-14-285-3800 (01980D6000A21B6)

NIIN: 14-285-3800
In stock
NSN: 5331-14-285-3800
FSC Code: 5331
MPN: 01980D6000A21B6

5331-01-484-7564 (0198-121)

NIIN: 01-484-7564
In stock
NSN: 5331-01-484-7564
FSC Code: 5331
MPN: 0198121

5331-01-424-3490 (019N)

NIIN: 01-424-3490
In stock
NSN: 5331-01-424-3490
FSC Code: 5331
MPN: 019N

5331-00-914-9055 (2-41S451-7)

NIIN: 00-914-9055
In stock
NSN: 5331-00-914-9055
FSC Code: 5331
MPN: 241S4517

5331-00-242-7102 (242-10330)

NIIN: 00-242-7102
In stock
NSN: 5331-00-242-7102
FSC Code: 5331
MPN: 24210330

5331-00-941-5327 (242-149-70)

NIIN: 00-941-5327
In stock
NSN: 5331-00-941-5327
FSC Code: 5331
MPN: 24214970

5331-01-122-4743 (2-425)

NIIN: 01-122-4743
In stock
NSN: 5331-01-122-4743
FSC Code: 5331
MPN: 2425

5331-01-291-6864 (2-425)

NIIN: 01-291-6864
In stock
NSN: 5331-01-291-6864
FSC Code: 5331
MPN: 2425

5331-01-254-9181 (2-425)

NIIN: 01-254-9181
In stock
NSN: 5331-01-254-9181
FSC Code: 5331
MPN: 2425

5331-00-480-9332 (2-425)

NIIN: 00-480-9332
In stock
NSN: 5331-00-480-9332
FSC Code: 5331
MPN: 2425

5331-01-005-0541 (2-425)

NIIN: 01-005-0541
In stock
NSN: 5331-01-005-0541
FSC Code: 5331
MPN: 2425

5331-00-968-1862 (2-425)

NIIN: 00-968-1862
In stock
NSN: 5331-00-968-1862
FSC Code: 5331
MPN: 2425

5331-12-184-0141 (0R40X1-5WS5-578)

NIIN: 12-184-0141
In stock
NSN: 5331-12-184-0141
FSC Code: 5331
MPN: 0R40X15WS5578