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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.

5331-01-243-4776 (AS113-29-153)

NIIN: 01-243-4776
In stock
NSN: 5331-01-243-4776
FSC Code: 5331
MPN: AS11329153

5331-01-113-9104 (AS113-29-032)

NIIN: 01-113-9104
In stock
NSN: 5331-01-113-9104
FSC Code: 5331
MPN: AS11329032

5331-01-040-7981 (AS113-23-027)

NIIN: 01-040-7981
In stock
NSN: 5331-01-040-7981
FSC Code: 5331
MPN: AS11323027

5331-01-253-6596 (AS113-29-133)

NIIN: 01-253-6596
In stock
NSN: 5331-01-253-6596
FSC Code: 5331
MPN: AS11329133

5331-01-173-5809 (AS113-68-135)

NIIN: 01-173-5809
In stock
NSN: 5331-01-173-5809
FSC Code: 5331
MPN: AS11368135

5331-01-103-1177 (AS113-23-131)

NIIN: 01-103-1177
In stock
NSN: 5331-01-103-1177
FSC Code: 5331
MPN: AS11323131

5331-00-054-4982 (AS113-17-127)

NIIN: 00-054-4982
In stock
NSN: 5331-00-054-4982
FSC Code: 5331
MPN: AS11317127

5331-01-129-5118 (AS113-23-006)

NIIN: 01-129-5118
In stock
NSN: 5331-01-129-5118
FSC Code: 5331
MPN: AS11323006

5331-01-040-4780 (AS113-23-009)

NIIN: 01-040-4780
In stock
NSN: 5331-01-040-4780
FSC Code: 5331
MPN: AS11323009

5331-00-169-0846 (AS113-23-018)

NIIN: 00-169-0846
In stock
NSN: 5331-00-169-0846
FSC Code: 5331
MPN: AS11323018

5331-01-134-8681 (AS113-23-016)

NIIN: 01-134-8681
In stock
NSN: 5331-01-134-8681
FSC Code: 5331
MPN: AS11323016

5331-01-043-1901 (AS113-23-011)

NIIN: 01-043-1901
In stock
NSN: 5331-01-043-1901
FSC Code: 5331
MPN: AS11323011

5331-00-987-0083 (AS113-17-024)

NIIN: 00-987-0083
In stock
NSN: 5331-00-987-0083
FSC Code: 5331
MPN: AS11317024

5331-00-831-0540 (AS113-17-010)

NIIN: 00-831-0540
In stock
NSN: 5331-00-831-0540
FSC Code: 5331
MPN: AS11317010

5331-00-827-6919 (AS112-17-10)

NIIN: 00-827-6919
In stock
NSN: 5331-00-827-6919
FSC Code: 5331
MPN: AS1121710

5331-01-114-2331 (AS111-04-6)

NIIN: 01-114-2331
In stock
NSN: 5331-01-114-2331
FSC Code: 5331
MPN: AS111046

5331-01-072-9200 (AS113-029-008)

NIIN: 01-072-9200
In stock
NSN: 5331-01-072-9200
FSC Code: 5331
MPN: AS113029008

5331-01-207-1896 (AS112-29-8)

NIIN: 01-207-1896
In stock
NSN: 5331-01-207-1896
FSC Code: 5331
MPN: AS112298

5331-00-839-7800 (AS112-17-08)

NIIN: 00-839-7800
In stock
NSN: 5331-00-839-7800
FSC Code: 5331
MPN: AS1121708

5331-00-155-4943 (AS112-17-02)

NIIN: 00-155-4943
In stock
NSN: 5331-00-155-4943
FSC Code: 5331
MPN: AS1121702

5331-00-303-0140 (AS112-29-03)

NIIN: 00-303-0140
In stock
NSN: 5331-00-303-0140
FSC Code: 5331
MPN: AS1122903

5331-01-499-1158 (5HK01658-103)

NIIN: 01-499-1158
In stock
NSN: 5331-01-499-1158
FSC Code: 5331
MPN: 5HK01658103

5331-00-182-3064 (AS111-01-3)

NIIN: 00-182-3064
In stock
NSN: 5331-00-182-3064
FSC Code: 5331
MPN: AS111013

5331-01-181-0606 (AS-1018-44A-36)

NIIN: 01-181-0606
In stock
NSN: 5331-01-181-0606
FSC Code: 5331
MPN: AS101844A36

5331-01-126-1238 (AS-022-N11)

NIIN: 01-126-1238
In stock
NSN: 5331-01-126-1238
FSC Code: 5331
MPN: AS022N11

5331-00-419-2854 (ARP568-928MILG2)

NIIN: 00-419-2854
In stock
NSN: 5331-00-419-2854
FSC Code: 5331
MPN: ARP568928MILG2

5331-01-019-3775 (ARP568-924MILP5)

NIIN: 01-019-3775
In stock
NSN: 5331-01-019-3775
FSC Code: 5331
MPN: ARP568924MILP5

5331-00-580-6330 (ARP568-924MILG2)

NIIN: 00-580-6330
In stock
NSN: 5331-00-580-6330
FSC Code: 5331
MPN: ARP568924MILG2

5331-00-108-0893 (ARP568-912AMS3651)

NIIN: 00-108-0893
In stock
NSN: 5331-00-108-0893
FSC Code: 5331
MPN: ARP568912AMS3651

5331-00-422-2508 (ARP568-906AMS3651)

NIIN: 00-422-2508
In stock
NSN: 5331-00-422-2508
FSC Code: 5331
MPN: ARP568906AMS3651

5331-00-763-0243 (ARP568-924MILG23652TY1)

NIIN: 00-763-0243
In stock
NSN: 5331-00-763-0243
FSC Code: 5331
MPN: ARP568924MILG23652TY1

5331-00-580-6326 (ARP568-910MILG2)

NIIN: 00-580-6326
In stock
NSN: 5331-00-580-6326
FSC Code: 5331
MPN: ARP568910MILG2

5331-00-137-3296 (ARP568-906ZZR765CL2BGR70)

NIIN: 00-137-3296
In stock
NSN: 5331-00-137-3296
FSC Code: 5331
MPN: ARP568906ZZR765CL2BGR70

5331-01-246-3897 (ARP-568-910TH1167)

NIIN: 01-246-3897
In stock
NSN: 5331-01-246-3897
FSC Code: 5331
MPN: ARP568910TH1167

5331-01-010-8361 (ARP568-910MIL-R-25897TY1CL2)

NIIN: 01-010-8361
In stock
NSN: 5331-01-010-8361
FSC Code: 5331
MPN: ARP568910MILR25897TY1CL2

5331-00-435-8511 (ARP568-912M1LG23652TY2)

NIIN: 00-435-8511
In stock
NSN: 5331-00-435-8511
FSC Code: 5331
MPN: ARP568912M1LG23652TY2

5331-00-763-0333 (ARP568-914MILP25732)

NIIN: 00-763-0333
In stock
NSN: 5331-00-763-0333
FSC Code: 5331
MPN: ARP568914MILP25732

5331-00-330-5509 (ARP568-904AMS36)

NIIN: 00-330-5509
In stock
NSN: 5331-00-330-5509
FSC Code: 5331
MPN: ARP568904AMS36

5331-00-931-6755 (ARP568-904)

NIIN: 00-931-6755
In stock
NSN: 5331-00-931-6755
FSC Code: 5331
MPN: ARP568904

5331-00-811-0782 (ARP568-438SILIC0NE)

NIIN: 00-811-0782
In stock
NSN: 5331-00-811-0782
FSC Code: 5331
MPN: ARP568438SILIC0NE

5331-01-006-2114 (ARP568-471MILR7362TY1)

NIIN: 01-006-2114
In stock
NSN: 5331-01-006-2114
FSC Code: 5331
MPN: ARP568471MILR7362TY1

5331-00-706-5508 (ARP568-434MILG23652TYPE1)

NIIN: 00-706-5508
In stock
NSN: 5331-00-706-5508
FSC Code: 5331
MPN: ARP568434MILG23652TYPE1

5331-00-020-3456 (ARP568-451IDSA6865-68)

NIIN: 00-020-3456
In stock
NSN: 5331-00-020-3456
FSC Code: 5331
MPN: ARP568451IDSA686568

5331-00-958-0267 (ARP568-341)

NIIN: 00-958-0267
In stock
NSN: 5331-00-958-0267
FSC Code: 5331
MPN: ARP568341

5331-00-765-2176 (ARP568-454MILG23652TY1)

NIIN: 00-765-2176
In stock
NSN: 5331-00-765-2176
FSC Code: 5331
MPN: ARP568454MILG23652TY1

5331-01-004-6989 (ARP568-902MILG2)

NIIN: 01-004-6989
In stock
NSN: 5331-01-004-6989
FSC Code: 5331
MPN: ARP568902MILG2

5331-00-004-3382 (ARP568-454IDSA6865)

NIIN: 00-004-3382
In stock
NSN: 5331-00-004-3382
FSC Code: 5331
MPN: ARP568454IDSA6865

5331-00-498-6593 (ARP568-450MILG22050GR1)

NIIN: 00-498-6593
In stock
NSN: 5331-00-498-6593
FSC Code: 5331
MPN: ARP568450MILG22050GR1