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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.

5331-01-179-7355 (S9026M143)

NIIN: 01-179-7355
In stock
NSN: 5331-01-179-7355
FSC Code: 5331
MPN: S9026M143

5331-01-511-8079 (CH18696)

NIIN: 01-511-8079
In stock
NSN: 5331-01-511-8079
FSC Code: 5331
MPN: CH18696

5331-01-475-3827 (CH17167)

NIIN: 01-475-3827
In stock
NSN: 5331-01-475-3827
FSC Code: 5331
MPN: CH17167

5331-01-475-3808 (CH14701)

NIIN: 01-475-3808
In stock
NSN: 5331-01-475-3808
FSC Code: 5331
MPN: CH14701

5331-01-095-5741 (S9026L113)

NIIN: 01-095-5741
In stock
NSN: 5331-01-095-5741
FSC Code: 5331
MPN: S9026L113

5331-00-001-6690 (S9026L028)

NIIN: 00-001-6690
In stock
NSN: 5331-00-001-6690
FSC Code: 5331
MPN: S9026L028

5331-01-475-3820 (CH14634)

NIIN: 01-475-3820
In stock
NSN: 5331-01-475-3820
FSC Code: 5331
MPN: CH14634

5331-01-561-4447 (CH12-0.75-25)

NIIN: 01-561-4447
In stock
NSN: 5331-01-561-4447
FSC Code: 5331
MPN: CH1207525

5331-01-166-4015 (S9026L155)

NIIN: 01-166-4015
In stock
NSN: 5331-01-166-4015
FSC Code: 5331
MPN: S9026L155

5331-01-095-5742 (S9026L112)

NIIN: 01-095-5742
In stock
NSN: 5331-01-095-5742
FSC Code: 5331
MPN: S9026L112

5331-01-561-4437 (CH12200)

NIIN: 01-561-4437
In stock
NSN: 5331-01-561-4437
FSC Code: 5331
MPN: CH12200

5331-01-500-8055 (CH11570)

NIIN: 01-500-8055
In stock
NSN: 5331-01-500-8055
FSC Code: 5331
MPN: CH11570

5331-01-031-5120 (S9026K149)

NIIN: 01-031-5120
In stock
NSN: 5331-01-031-5120
FSC Code: 5331
MPN: S9026K149

5331-00-001-6688 (S9026L020)

NIIN: 00-001-6688
In stock
NSN: 5331-00-001-6688
FSC Code: 5331
MPN: S9026L020

5331-01-037-6129 (S9026K127)

NIIN: 01-037-6129
In stock
NSN: 5331-01-037-6129
FSC Code: 5331
MPN: S9026K127

5331-01-475-4323 (CH11573)

NIIN: 01-475-4323
In stock
NSN: 5331-01-475-4323
FSC Code: 5331
MPN: CH11573

5331-01-205-5045 (S9026K262)

NIIN: 01-205-5045
In stock
NSN: 5331-01-205-5045
FSC Code: 5331
MPN: S9026K262

5331-01-475-3807 (CH11436)

NIIN: 01-475-3807
In stock
NSN: 5331-01-475-3807
FSC Code: 5331
MPN: CH11436

5331-00-253-4972 (S9026L011)

NIIN: 00-253-4972
In stock
NSN: 5331-00-253-4972
FSC Code: 5331
MPN: S9026L011

5331-00-001-8186 (S9026L039)

NIIN: 00-001-8186
In stock
NSN: 5331-00-001-8186
FSC Code: 5331
MPN: S9026L039

5331-00-001-8178 (S9026K015)

NIIN: 00-001-8178
In stock
NSN: 5331-00-001-8178
FSC Code: 5331
MPN: S9026K015

5331-01-022-1989 (S9026K114)

NIIN: 01-022-1989
In stock
NSN: 5331-01-022-1989
FSC Code: 5331
MPN: S9026K114

5331-01-021-6884 (S9026K120)

NIIN: 01-021-6884
In stock
NSN: 5331-01-021-6884
FSC Code: 5331
MPN: S9026K120

5331-01-561-4440 (CH01800)

NIIN: 01-561-4440
In stock
NSN: 5331-01-561-4440
FSC Code: 5331
MPN: CH01800

5331-99-062-1883 (CH100-15-015)

NIIN: 99-062-1883
In stock
NSN: 5331-99-062-1883
FSC Code: 5331
MPN: CH10015015

5331-01-562-7051 (CH10060)

NIIN: 01-562-7051
In stock
NSN: 5331-01-562-7051
FSC Code: 5331
MPN: CH10060

5331-01-352-1200 (CH100-15-015)

NIIN: 01-352-1200
In stock
NSN: 5331-01-352-1200
FSC Code: 5331
MPN: CH10015015

5331-00-435-9148 (S9026K040)

NIIN: 00-435-9148
In stock
NSN: 5331-00-435-9148
FSC Code: 5331
MPN: S9026K040

5331-01-201-8612 (S9026J015)

NIIN: 01-201-8612
In stock
NSN: 5331-01-201-8612
FSC Code: 5331
MPN: S9026J015

5331-01-201-8610 (S9026J010)

NIIN: 01-201-8610
In stock
NSN: 5331-01-201-8610
FSC Code: 5331
MPN: S9026J010

5331-01-201-8608 (S9026J008)

NIIN: 01-201-8608
In stock
NSN: 5331-01-201-8608
FSC Code: 5331
MPN: S9026J008

5331-00-420-6420 (S9026G283)

NIIN: 00-420-6420
In stock
NSN: 5331-00-420-6420
FSC Code: 5331
MPN: S9026G283

5331-01-569-2407 (CGR1601-0125-17)

NIIN: 01-569-2407
In stock
NSN: 5331-01-569-2407
FSC Code: 5331
MPN: CGR1601012517

5331-00-400-3977 (S9026G267)

NIIN: 00-400-3977
In stock
NSN: 5331-00-400-3977
FSC Code: 5331
MPN: S9026G267

5331-01-201-8611 (S9026J012)

NIIN: 01-201-8611
In stock
NSN: 5331-01-201-8611
FSC Code: 5331
MPN: S9026J012

5331-01-009-7214 (S9026G334)

NIIN: 01-009-7214
In stock
NSN: 5331-01-009-7214
FSC Code: 5331
MPN: S9026G334

5331-01-043-1421 (S9026G037)

NIIN: 01-043-1421
In stock
NSN: 5331-01-043-1421
FSC Code: 5331
MPN: S9026G037

5331-00-171-4398 (S9026G114)

NIIN: 00-171-4398
In stock
NSN: 5331-00-171-4398
FSC Code: 5331
MPN: S9026G114

5331-00-397-5719 (S9026G110)

NIIN: 00-397-5719
In stock
NSN: 5331-00-397-5719
FSC Code: 5331
MPN: S9026G110

5331-01-053-7655 (S9026G126)

NIIN: 01-053-7655
In stock
NSN: 5331-01-053-7655
FSC Code: 5331
MPN: S9026G126

5331-01-290-9586 (S9026G017)

NIIN: 01-290-9586
In stock
NSN: 5331-01-290-9586
FSC Code: 5331
MPN: S9026G017

5331-00-536-6737 (S9026G010)

NIIN: 00-536-6737
In stock
NSN: 5331-00-536-6737
FSC Code: 5331
MPN: S9026G010

5331-00-001-6693 (S9026G008)

NIIN: 00-001-6693
In stock
NSN: 5331-00-001-6693
FSC Code: 5331
MPN: S9026G008

5331-01-112-7967 (S9026G013)

NIIN: 01-112-7967
In stock
NSN: 5331-01-112-7967
FSC Code: 5331
MPN: S9026G013

5331-00-001-6685 (S9026D265)

NIIN: 00-001-6685
In stock
NSN: 5331-00-001-6685
FSC Code: 5331
MPN: S9026D265

5331-01-070-8202 (S9026E009)

NIIN: 01-070-8202
In stock
NSN: 5331-01-070-8202
FSC Code: 5331
MPN: S9026E009

5331-01-070-8199 (S9026E341)

NIIN: 01-070-8199
In stock
NSN: 5331-01-070-8199
FSC Code: 5331
MPN: S9026E341

5331-00-943-5254 (S9026E033)

NIIN: 00-943-5254
In stock
NSN: 5331-00-943-5254
FSC Code: 5331
MPN: S9026E033