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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.

5331-01-227-4868 (AS28775)

NIIN: 01-227-4868
In stock
NSN: 5331-01-227-4868
FSC Code: 5331
MPN: AS28775

5331-01-240-7423 (AS28775)

NIIN: 01-240-7423
In stock
NSN: 5331-01-240-7423
FSC Code: 5331
MPN: AS28775

5331-01-241-4033 (AS28775)

NIIN: 01-241-4033
In stock
NSN: 5331-01-241-4033
FSC Code: 5331
MPN: AS28775

5331-01-204-4223 (AS28775)

NIIN: 01-204-4223
In stock
NSN: 5331-01-204-4223
FSC Code: 5331
MPN: AS28775

5331-01-236-1539 (AS28775)

NIIN: 01-236-1539
In stock
NSN: 5331-01-236-1539
FSC Code: 5331
MPN: AS28775

5331-01-197-2590 (AS28775)

NIIN: 01-197-2590
In stock
NSN: 5331-01-197-2590
FSC Code: 5331
MPN: AS28775

5331-01-226-8750 (AS28775)

NIIN: 01-226-8750
In stock
NSN: 5331-01-226-8750
FSC Code: 5331
MPN: AS28775

5331-01-247-6866 (AS28775)

NIIN: 01-247-6866
In stock
NSN: 5331-01-247-6866
FSC Code: 5331
MPN: AS28775

5331-01-514-5873 (5I-4993)

NIIN: 01-514-5873
In stock
NSN: 5331-01-514-5873
FSC Code: 5331
MPN: 5I4993

5331-01-514-8209 (5I-7744)

NIIN: 01-514-8209
In stock
NSN: 5331-01-514-8209
FSC Code: 5331
MPN: 5I7744

5331-01-411-8116 (5HS327)

NIIN: 01-411-8116
In stock
NSN: 5331-01-411-8116
FSC Code: 5331
MPN: 5HS327

5331-01-324-9451 (AS-228)

NIIN: 01-324-9451
In stock
NSN: 5331-01-324-9451
FSC Code: 5331
MPN: AS228

5331-01-278-5080 (AS210-B46A)

NIIN: 01-278-5080
In stock
NSN: 5331-01-278-5080
FSC Code: 5331
MPN: AS210B46A

5331-01-144-3142 (AS21171A139)

NIIN: 01-144-3142
In stock
NSN: 5331-01-144-3142
FSC Code: 5331
MPN: AS21171A139

5331-01-225-4858 (AS1901-4C)

NIIN: 01-225-4858
In stock
NSN: 5331-01-225-4858
FSC Code: 5331
MPN: AS19014C

5331-01-293-6133 (AS-142B46A)

NIIN: 01-293-6133
In stock
NSN: 5331-01-293-6133
FSC Code: 5331
MPN: AS142B46A

5331-00-147-3429 (AS147-03-217)

NIIN: 00-147-3429
In stock
NSN: 5331-00-147-3429
FSC Code: 5331
MPN: AS14703217

5331-00-140-2315 (AS147-03-212)

NIIN: 00-140-2315
In stock
NSN: 5331-00-140-2315
FSC Code: 5331
MPN: AS14703212

5331-01-173-5810 (AS113-68-153)

NIIN: 01-173-5810
In stock
NSN: 5331-01-173-5810
FSC Code: 5331
MPN: AS11368153

5331-01-072-9198 (AS113-29-003)

NIIN: 01-072-9198
In stock
NSN: 5331-01-072-9198
FSC Code: 5331
MPN: AS11329003

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