Skip to content

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.

5331-01-555-9748 (114860-001)

NIIN: 01-555-9748
In stock
NSN: 5331-01-555-9748
FSC Code: 5331
MPN: 114860001

5331-01-555-9752 (114860-001)

NIIN: 01-555-9752
In stock
NSN: 5331-01-555-9752
FSC Code: 5331
MPN: 114860001

5331-00-171-6411 (35016C)

NIIN: 00-171-6411
In stock
NSN: 5331-00-171-6411
FSC Code: 5331
MPN: 35016C

5331-00-618-5942 (35012V)

NIIN: 00-618-5942
In stock
NSN: 5331-00-618-5942
FSC Code: 5331
MPN: 35012V

5331-00-824-9132 (35014J)

NIIN: 00-824-9132
In stock
NSN: 5331-00-824-9132
FSC Code: 5331
MPN: 35014J

5331-00-530-3502 (35010C)

NIIN: 00-530-3502
In stock
NSN: 5331-00-530-3502
FSC Code: 5331
MPN: 35010C

5331-00-584-1505 (35012H)

NIIN: 00-584-1505
In stock
NSN: 5331-00-584-1505
FSC Code: 5331
MPN: 35012H

5331-00-618-0338 (35010J)

NIIN: 00-618-0338
In stock
NSN: 5331-00-618-0338
FSC Code: 5331
MPN: 35010J

5331-01-146-5478 (350096-31-1)

NIIN: 01-146-5478
In stock
NSN: 5331-01-146-5478
FSC Code: 5331
MPN: 350096311

5331-01-419-5479 (114770-01340)

NIIN: 01-419-5479
In stock
NSN: 5331-01-419-5479
FSC Code: 5331
MPN: 11477001340

5331-01-315-2140 (3500-172438)

NIIN: 01-315-2140
In stock
NSN: 5331-01-315-2140
FSC Code: 5331
MPN: 3500172438

5331-01-315-2139 (3500-172439)

NIIN: 01-315-2139
In stock
NSN: 5331-01-315-2139
FSC Code: 5331
MPN: 3500172439

5331-01-561-8602 (1146-A02V-200-IT)

NIIN: 01-561-8602
In stock
NSN: 5331-01-561-8602
FSC Code: 5331
MPN: 1146A02V200IT

5331-01-561-9616 (1146-A04V)

NIIN: 01-561-9616
In stock
NSN: 5331-01-561-9616
FSC Code: 5331
MPN: 1146A04V

5331-01-561-9582 (1146-A04V-112)

NIIN: 01-561-9582
In stock
NSN: 5331-01-561-9582
FSC Code: 5331
MPN: 1146A04V112

5331-00-832-9509 (3-4S383-7)

NIIN: 00-832-9509
In stock
NSN: 5331-00-832-9509
FSC Code: 5331
MPN: 34S3837

5331-00-948-0769 (3-4S317-6)

NIIN: 00-948-0769
In stock
NSN: 5331-00-948-0769
FSC Code: 5331
MPN: 34S3176

5331-01-372-8343 (19-00-M225-1215)

NIIN: 01-372-8343
In stock
NSN: 5331-01-372-8343
FSC Code: 5331
MPN: 1900M2251215

5331-00-274-7854 (3-4S418-6)

NIIN: 00-274-7854
In stock
NSN: 5331-00-274-7854
FSC Code: 5331
MPN: 34S4186

5331-00-138-9986 (3-4PS1-30-5)

NIIN: 00-138-9986
In stock
NSN: 5331-00-138-9986
FSC Code: 5331
MPN: 34PS1305

5331-00-891-8851 (3-4N219-7)

NIIN: 00-891-8851
In stock
NSN: 5331-00-891-8851
FSC Code: 5331
MPN: 34N2197

5331-00-208-7104 (3-4DN4-27)

NIIN: 00-208-7104
In stock
NSN: 5331-00-208-7104
FSC Code: 5331
MPN: 34DN427

5331-01-415-3788 (5331PL0806194)

NIIN: 01-415-3788
In stock
NSN: 5331-01-415-3788
FSC Code: 5331
MPN: 5331PL0806194

5331-01-014-3297 (3-4CP)

NIIN: 01-014-3297
In stock
NSN: 5331-01-014-3297
FSC Code: 5331
MPN: 34CP

5331-00-251-0458 (34A3590-8)

NIIN: 00-251-0458
In stock
NSN: 5331-00-251-0458
FSC Code: 5331
MPN: 34A35908

5331-01-486-0074 (11462L001)

NIIN: 01-486-0074
In stock
NSN: 5331-01-486-0074
FSC Code: 5331
MPN: 11462L001

5331-00-090-1548 (349S20)

NIIN: 00-090-1548
In stock
NSN: 5331-00-090-1548
FSC Code: 5331
MPN: 349S20

5331-00-315-9264 (34A)

NIIN: 00-315-9264
In stock
NSN: 5331-00-315-9264
FSC Code: 5331
MPN: 34A

5331-00-432-8382 (34994-31)

NIIN: 00-432-8382
In stock
NSN: 5331-00-432-8382
FSC Code: 5331
MPN: 3499431

5331-00-991-4868 (34942J)

NIIN: 00-991-4868
In stock
NSN: 5331-00-991-4868
FSC Code: 5331
MPN: 34942J

5331-00-883-9956 (34923AE)

NIIN: 00-883-9956
In stock
NSN: 5331-00-883-9956
FSC Code: 5331
MPN: 34923AE

5331-00-833-4061 (34921V)

NIIN: 00-833-4061
In stock
NSN: 5331-00-833-4061
FSC Code: 5331
MPN: 34921V

5331-00-167-2595 (349-14)

NIIN: 00-167-2595
In stock
NSN: 5331-00-167-2595
FSC Code: 5331
MPN: 34914

5331-00-228-2040 (34914-90672)

NIIN: 00-228-2040
In stock
NSN: 5331-00-228-2040
FSC Code: 5331
MPN: 3491490672

5331-00-824-9146 (34913J)

NIIN: 00-824-9146
In stock
NSN: 5331-00-824-9146
FSC Code: 5331
MPN: 34913J

5331-00-953-8978 (34907J)

NIIN: 00-953-8978
In stock
NSN: 5331-00-953-8978
FSC Code: 5331
MPN: 34907J

5331-00-807-7928 (34908J)

NIIN: 00-807-7928
In stock
NSN: 5331-00-807-7928
FSC Code: 5331
MPN: 34908J

5331-00-957-1490 (34903J)

NIIN: 00-957-1490
In stock
NSN: 5331-00-957-1490
FSC Code: 5331
MPN: 34903J

5331-00-995-7997 (34902J)

NIIN: 00-995-7997
In stock
NSN: 5331-00-995-7997
FSC Code: 5331
MPN: 34902J

5331-01-225-9694 (34901AE)

NIIN: 01-225-9694
In stock
NSN: 5331-01-225-9694
FSC Code: 5331
MPN: 34901AE

5331-00-286-1121 (348S7)

NIIN: 00-286-1121
In stock
NSN: 5331-00-286-1121
FSC Code: 5331
MPN: 348S7

5331-00-180-9194 (348-8307)

NIIN: 00-180-9194
In stock
NSN: 5331-00-180-9194
FSC Code: 5331
MPN: 3488307

5331-01-184-6491 (348136-1)

NIIN: 01-184-6491
In stock
NSN: 5331-01-184-6491
FSC Code: 5331
MPN: 3481361

5331-01-335-9952 (348-1145-00)

NIIN: 01-335-9952
In stock
NSN: 5331-01-335-9952
FSC Code: 5331
MPN: 348114500

5331-00-159-4264 (347584-2)

NIIN: 00-159-4264
In stock
NSN: 5331-00-159-4264
FSC Code: 5331
MPN: 3475842

5331-00-482-4625 (347584-3)

NIIN: 00-482-4625
In stock
NSN: 5331-00-482-4625
FSC Code: 5331
MPN: 3475843

5331-01-227-6412 (34737-17)

NIIN: 01-227-6412
In stock
NSN: 5331-01-227-6412
FSC Code: 5331
MPN: 3473717

5331-01-466-0712 (114350-01380)

NIIN: 01-466-0712
In stock
NSN: 5331-01-466-0712
FSC Code: 5331
MPN: 11435001380