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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.

5331-00-640-9417 (PD5330-212-14)

NIIN: 00-640-9417
In stock
NSN: 5331-00-640-9417
FSC Code: 5331
MPN: PD533021214

5331-01-385-6054 (MIL-DTL-25988/4)

NIIN: 01-385-6054
In stock
NSN: 5331-01-385-6054
FSC Code: 5331
MPN: MILDTL259884

5331-01-007-8443 (PD14037-37)

NIIN: 01-007-8443
In stock
NSN: 5331-01-007-8443
FSC Code: 5331
MPN: PD1403737

5331-01-007-8446 (PD14037-02PC10)

NIIN: 01-007-8446
In stock
NSN: 5331-01-007-8446
FSC Code: 5331
MPN: PD1403702PC10

5331-01-007-8444 (PD14037-38)

NIIN: 01-007-8444
In stock
NSN: 5331-01-007-8444
FSC Code: 5331
MPN: PD1403738

5331-01-307-8657 (PC99199-6)

NIIN: 01-307-8657
In stock
NSN: 5331-01-307-8657
FSC Code: 5331
MPN: PC991996

5331-01-302-7695 (PC99199-4)

NIIN: 01-302-7695
In stock
NSN: 5331-01-302-7695
FSC Code: 5331
MPN: PC991994

5331-01-303-6355 (PC99199-3)

NIIN: 01-303-6355
In stock
NSN: 5331-01-303-6355
FSC Code: 5331
MPN: PC991993

5331-00-839-9064 (PC198-14-2)

NIIN: 00-839-9064
In stock
NSN: 5331-00-839-9064
FSC Code: 5331
MPN: PC198142

5331-01-459-6245 (B180-011)

NIIN: 01-459-6245
In stock
NSN: 5331-01-459-6245
FSC Code: 5331
MPN: B180011

5331-00-839-9067 (PC198-212-2)

NIIN: 00-839-9067
In stock
NSN: 5331-00-839-9067
FSC Code: 5331
MPN: PC1982122

5331-01-519-0809 (B16302-1)

NIIN: 01-519-0809
In stock
NSN: 5331-01-519-0809
FSC Code: 5331
MPN: B163021

5331-01-542-2126 (B16193-1CP)

NIIN: 01-542-2126
In stock
NSN: 5331-01-542-2126
FSC Code: 5331
MPN: B161931CP

5331-01-396-9695 (B15G)

NIIN: 01-396-9695
In stock
NSN: 5331-01-396-9695
FSC Code: 5331
MPN: B15G

5331-01-353-1774 (B160.6144-127)

NIIN: 01-353-1774
In stock
NSN: 5331-01-353-1774
FSC Code: 5331
MPN: B1606144127

5331-01-396-8059 (B15G-5IN)

NIIN: 01-396-8059
In stock
NSN: 5331-01-396-8059
FSC Code: 5331
MPN: B15G5IN

5331-01-396-8452 (B15G-4INPC6)

NIIN: 01-396-8452
In stock
NSN: 5331-01-396-8452
FSC Code: 5331
MPN: B15G4INPC6

5331-01-397-2549 (B15A-SC)

NIIN: 01-397-2549
In stock
NSN: 5331-01-397-2549
FSC Code: 5331
MPN: B15ASC

5331-01-527-4138 (B15779)

NIIN: 01-527-4138
In stock
NSN: 5331-01-527-4138
FSC Code: 5331
MPN: B15779

5331-00-515-3892 (PB53330-1)

NIIN: 00-515-3892
In stock
NSN: 5331-00-515-3892
FSC Code: 5331
MPN: PB533301

5331-01-438-4979 (B-147-A)

NIIN: 01-438-4979
In stock
NSN: 5331-01-438-4979
FSC Code: 5331
MPN: B147A

5331-01-359-6712 (B14056-904)

NIIN: 01-359-6712
In stock
NSN: 5331-01-359-6712
FSC Code: 5331
MPN: B14056904

5331-01-359-6713 (B14056-157)

NIIN: 01-359-6713
In stock
NSN: 5331-01-359-6713
FSC Code: 5331
MPN: B14056157

5331-00-959-9293 (PB1181-23750-43)

NIIN: 00-959-9293
In stock
NSN: 5331-00-959-9293
FSC Code: 5331
MPN: PB11812375043

5331-01-346-0292 (B1246.503)

NIIN: 01-346-0292
In stock
NSN: 5331-01-346-0292
FSC Code: 5331
MPN: B1246503

5331-01-346-0294 (B1247.503)

NIIN: 01-346-0294
In stock
NSN: 5331-01-346-0294
FSC Code: 5331
MPN: B1247503

5331-01-392-5772 (B-122-A-3.5IN)

NIIN: 01-392-5772
In stock
NSN: 5331-01-392-5772
FSC Code: 5331
MPN: B122A35IN

5331-01-346-0293 (B1238.503)

NIIN: 01-346-0293
In stock
NSN: 5331-01-346-0293
FSC Code: 5331
MPN: B1238503

5331-01-392-5787 (B-122-A-6IN-PC15)

NIIN: 01-392-5787
In stock
NSN: 5331-01-392-5787
FSC Code: 5331
MPN: B122A6INPC15

5331-01-321-2359 (PACKING)

NIIN: 01-321-2359
In stock
NSN: 5331-01-321-2359
FSC Code: 5331
MPN: PACKING

5331-01-205-5044 (PA60351-1)

NIIN: 01-205-5044
In stock
NSN: 5331-01-205-5044
FSC Code: 5331
MPN: PA603511

5331-01-375-4203 (B112E-1200-10)

NIIN: 01-375-4203
In stock
NSN: 5331-01-375-4203
FSC Code: 5331
MPN: B112E120010

5331-01-249-6728 (PA420D1512B18-18)

NIIN: 01-249-6728
In stock
NSN: 5331-01-249-6728
FSC Code: 5331
MPN: PA420D1512B1818

5331-01-376-6649 (B112E-1000-10)

NIIN: 01-376-6649
In stock
NSN: 5331-01-376-6649
FSC Code: 5331
MPN: B112E100010

5331-01-275-7622 (PA420D1512B05-18)

NIIN: 01-275-7622
In stock
NSN: 5331-01-275-7622
FSC Code: 5331
MPN: PA420D1512B0518

5331-01-281-8999 (PA405D1532B04-19)

NIIN: 01-281-8999
In stock
NSN: 5331-01-281-8999
FSC Code: 5331
MPN: PA405D1532B0419

5331-01-520-8474 (B1110.903)

NIIN: 01-520-8474
In stock
NSN: 5331-01-520-8474
FSC Code: 5331
MPN: B1110903

5331-01-258-2595 (PA409D1562BSC14-15)

NIIN: 01-258-2595
In stock
NSN: 5331-01-258-2595
FSC Code: 5331
MPN: PA409D1562BSC1415

5331-01-252-7147 (PA415D1532B14-1)

NIIN: 01-252-7147
In stock
NSN: 5331-01-252-7147
FSC Code: 5331
MPN: PA415D1532B141

5331-01-295-0004 (PA405D1532BSC08-19)

NIIN: 01-295-0004
In stock
NSN: 5331-01-295-0004
FSC Code: 5331
MPN: PA405D1532BSC0819

5331-01-250-2081 (PA405D1532BSC-2.50-19)

NIIN: 01-250-2081
In stock
NSN: 5331-01-250-2081
FSC Code: 5331
MPN: PA405D1532BSC25019

5331-01-259-7478 (PA405D1532BSC12)

NIIN: 01-259-7478
In stock
NSN: 5331-01-259-7478
FSC Code: 5331
MPN: PA405D1532BSC12

5331-01-268-0047 (PA400DG1512B2-1)

NIIN: 01-268-0047
In stock
NSN: 5331-01-268-0047
FSC Code: 5331
MPN: PA400DG1512B21

5331-01-265-9234 (PA401D1562BSC14-15)

NIIN: 01-265-9234
In stock
NSN: 5331-01-265-9234
FSC Code: 5331
MPN: PA401D1562BSC1415

5331-01-250-2080 (PA401D1562B-18-)

NIIN: 01-250-2080
In stock
NSN: 5331-01-250-2080
FSC Code: 5331
MPN: PA401D1562B18

5331-01-260-8810 (PA400D1512B06-18)

NIIN: 01-260-8810
In stock
NSN: 5331-01-260-8810
FSC Code: 5331
MPN: PA400D1512B0618

5331-01-249-5644 (PA2501532X10-19)

NIIN: 01-249-5644
In stock
NSN: 5331-01-249-5644
FSC Code: 5331
MPN: PA2501532X1019

5331-01-249-6730 (PA240D1512B06-18)

NIIN: 01-249-6730
In stock
NSN: 5331-01-249-6730
FSC Code: 5331
MPN: PA240D1512B0618