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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.

5331-01-475-2744 (20-15-1416)

NIIN: 01-475-2744
In stock
NSN: 5331-01-475-2744
FSC Code: 5331
MPN: 20151416

5331-01-464-3752 (2-014-V884-75)

NIIN: 01-464-3752
In stock
NSN: 5331-01-464-3752
FSC Code: 5331
MPN: 2014V88475

5331-01-529-6816 (FIND NO. 192 7385926FINDNO192)

NIIN: 01-529-6816
In stock
NSN: 5331-01-529-6816
FSC Code: 5331
MPN: FINDNO1927385926FINDNO192

5331-01-394-1873 (AS3085-015)

NIIN: 01-394-1873
In stock
NSN: 5331-01-394-1873
FSC Code: 5331
MPN: AS3085015

5331-01-548-6123 (2-015)

NIIN: 01-548-6123
In stock
NSN: 5331-01-548-6123
FSC Code: 5331
MPN: 2015

5331-01-540-8114 (820-5295154PCA25-1)

NIIN: 01-540-8114
In stock
NSN: 5331-01-540-8114
FSC Code: 5331
MPN: 8205295154PCA251

5331-01-485-4069 (2-014-V0894-90)

NIIN: 01-485-4069
In stock
NSN: 5331-01-485-4069
FSC Code: 5331
MPN: 2014V089490

5331-01-475-2745 (20-14-1416)

NIIN: 01-475-2745
In stock
NSN: 5331-01-475-2745
FSC Code: 5331
MPN: 20141416

5331-01-479-0614 (L116100)

NIIN: 01-479-0614
In stock
NSN: 5331-01-479-0614
FSC Code: 5331
MPN: L116100

5331-01-382-7554 (2-014)

NIIN: 01-382-7554
In stock
NSN: 5331-01-382-7554
FSC Code: 5331
MPN: 2014

5331-01-515-1016 (2-014)

NIIN: 01-515-1016
In stock
NSN: 5331-01-515-1016
FSC Code: 5331
MPN: 2014

5331-01-549-1508 (2-0-13R1)

NIIN: 01-549-1508
In stock
NSN: 5331-01-549-1508
FSC Code: 5331
MPN: 2013R1

5331-01-226-8749 (5-496-N-507-90-MS)

NIIN: 01-226-8749
In stock
NSN: 5331-01-226-8749
FSC Code: 5331
MPN: 5496N50790MS

5331-01-530-8245 (2-013N0552-90)

NIIN: 01-530-8245
In stock
NSN: 5331-01-530-8245
FSC Code: 5331
MPN: 2013N055290

5331-01-391-9849 (2-013-L946-60)

NIIN: 01-391-9849
In stock
NSN: 5331-01-391-9849
FSC Code: 5331
MPN: 2013L94660

5331-01-471-0720 (A06689.021.222)

NIIN: 01-471-0720
In stock
NSN: 5331-01-471-0720
FSC Code: 5331
MPN: A06689021222

5331-01-571-9858 (2-012S0604-70)

NIIN: 01-571-9858
In stock
NSN: 5331-01-571-9858
FSC Code: 5331
MPN: 2012S060470

5331-01-529-6803 (FIND NO. 191 7385926FINDNO191)

NIIN: 01-529-6803
In stock
NSN: 5331-01-529-6803
FSC Code: 5331
MPN: FINDNO1917385926FINDNO191

5331-01-526-1817 (820-6879279PC27)

NIIN: 01-526-1817
In stock
NSN: 5331-01-526-1817
FSC Code: 5331
MPN: 8206879279PC27

5331-01-490-4307 (77724-28/REF2-013)

NIIN: 01-490-4307
In stock
NSN: 5331-01-490-4307
FSC Code: 5331
MPN: 7772428REF2013

5331-01-507-5446 (2-012-N552-90)

NIIN: 01-507-5446
In stock
NSN: 5331-01-507-5446
FSC Code: 5331
MPN: 2012N55290

5331-01-421-9918 (2-012-N602-70)

NIIN: 01-421-9918
In stock
NSN: 5331-01-421-9918
FSC Code: 5331
MPN: 2012N60270

5331-01-480-3014 (20-1250-50)

NIIN: 01-480-3014
In stock
NSN: 5331-01-480-3014
FSC Code: 5331
MPN: 20125050

5331-01-283-5469 (5-493N304-75)

NIIN: 01-283-5469
In stock
NSN: 5331-01-283-5469
FSC Code: 5331
MPN: 5493N30475

5331-01-475-2746 (PSB20-12-1416)

NIIN: 01-475-2746
In stock
NSN: 5331-01-475-2746
FSC Code: 5331
MPN: PSB20121416

5331-01-480-6292 (201201-012)

NIIN: 01-480-6292
In stock
NSN: 5331-01-480-6292
FSC Code: 5331
MPN: 201201012

5331-01-466-4171 (201201-233)

NIIN: 01-466-4171
In stock
NSN: 5331-01-466-4171
FSC Code: 5331
MPN: 201201233

5331-01-466-4166 (201201-114)

NIIN: 01-466-4166
In stock
NSN: 5331-01-466-4166
FSC Code: 5331
MPN: 201201114

5331-01-527-9422 (201201-134)

NIIN: 01-527-9422
In stock
NSN: 5331-01-527-9422
FSC Code: 5331
MPN: 201201134

5331-01-471-0412 (2-011-E1100-50)

NIIN: 01-471-0412
In stock
NSN: 5331-01-471-0412
FSC Code: 5331
MPN: 2011E110050

5331-01-412-0020 (2-011F940-80)

NIIN: 01-412-0020
In stock
NSN: 5331-01-412-0020
FSC Code: 5331
MPN: 2011F94080

5331-01-568-1571 (2-012)

NIIN: 01-568-1571
In stock
NSN: 5331-01-568-1571
FSC Code: 5331
MPN: 2012

5331-01-377-2786 (20A11-C-M244)

NIIN: 01-377-2786
In stock
NSN: 5331-01-377-2786
FSC Code: 5331
MPN: 20A11CM244

5331-01-571-8598 (339-0047-000PG42NO.150)

NIIN: 01-571-8598
In stock
NSN: 5331-01-571-8598
FSC Code: 5331
MPN: 3390047000PG42NO150

5331-01-377-7270 (20A11-C-M229)

NIIN: 01-377-7270
In stock
NSN: 5331-01-377-7270
FSC Code: 5331
MPN: 20A11CM229

5331-01-377-2785 (20A11-C-M256)

NIIN: 01-377-2785
In stock
NSN: 5331-01-377-2785
FSC Code: 5331
MPN: 20A11CM256

5331-01-377-2784 (20A11-C-M432)

NIIN: 01-377-2784
In stock
NSN: 5331-01-377-2784
FSC Code: 5331
MPN: 20A11CM432

5331-01-466-9134 (2012N1059-90)

NIIN: 01-466-9134
In stock
NSN: 5331-01-466-9134
FSC Code: 5331
MPN: 2012N105990

5331-01-342-2543 (201-19)

NIIN: 01-342-2543
In stock
NSN: 5331-01-342-2543
FSC Code: 5331
MPN: 20119

5331-01-377-5369 (20A11-C-M448)

NIIN: 01-377-5369
In stock
NSN: 5331-01-377-5369
FSC Code: 5331
MPN: 20A11CM448

5331-01-376-9672 (2-011A)

NIIN: 01-376-9672
In stock
NSN: 5331-01-376-9672
FSC Code: 5331
MPN: 2011A

5331-00-542-5613 (54904-50A)

NIIN: 00-542-5613
In stock
NSN: 5331-00-542-5613
FSC Code: 5331
MPN: 5490450A

5331-01-572-7195 (2-011)

NIIN: 01-572-7195
In stock
NSN: 5331-01-572-7195
FSC Code: 5331
MPN: 2011

5331-01-561-8060 (2-010-N0674-70)

NIIN: 01-561-8060
In stock
NSN: 5331-01-561-8060
FSC Code: 5331
MPN: 2010N067470

5331-00-943-2052 (5-485S604-7)

NIIN: 00-943-2052
In stock
NSN: 5331-00-943-2052
FSC Code: 5331
MPN: 5485S6047

5331-01-524-0137 (2-010E0515-80)

NIIN: 01-524-0137
In stock
NSN: 5331-01-524-0137
FSC Code: 5331
MPN: 2010E051580

5331-01-352-2757 (2-010N1090-85)

NIIN: 01-352-2757
In stock
NSN: 5331-01-352-2757
FSC Code: 5331
MPN: 2010N109085

5331-01-503-6096 (2010869-002)

NIIN: 01-503-6096
In stock
NSN: 5331-01-503-6096
FSC Code: 5331
MPN: 2010869002