Skip to content

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.

5331-01-487-4159 (001.05.1479)

NIIN: 01-487-4159
In stock
NSN: 5331-01-487-4159
FSC Code: 5331
MPN: 001051479

5331-01-525-7155 (001.05.0807)

NIIN: 01-525-7155
In stock
NSN: 5331-01-525-7155
FSC Code: 5331
MPN: 001050807

5331-01-358-7949 (001.05.1356)

NIIN: 01-358-7949
In stock
NSN: 5331-01-358-7949
FSC Code: 5331
MPN: 001051356

5331-01-528-5042 (001.05.1119)

NIIN: 01-528-5042
In stock
NSN: 5331-01-528-5042
FSC Code: 5331
MPN: 001051119

5331-01-487-4164 (001.05.1494)

NIIN: 01-487-4164
In stock
NSN: 5331-01-487-4164
FSC Code: 5331
MPN: 001051494

5331-01-525-7157 (001.05.1620)

NIIN: 01-525-7157
In stock
NSN: 5331-01-525-7157
FSC Code: 5331
MPN: 001051620

5331-01-487-4174 (001.05.0820)

NIIN: 01-487-4174
In stock
NSN: 5331-01-487-4174
FSC Code: 5331
MPN: 001050820

5331-01-528-5077 (001.05.3375)

NIIN: 01-528-5077
In stock
NSN: 5331-01-528-5077
FSC Code: 5331
MPN: 001053375

5331-01-360-6940 (001.05.1357)

NIIN: 01-360-6940
In stock
NSN: 5331-01-360-6940
FSC Code: 5331
MPN: 001051357

5331-01-528-5074 (001.05.2945)

NIIN: 01-528-5074
In stock
NSN: 5331-01-528-5074
FSC Code: 5331
MPN: 001052945

5331-01-416-5453 (001.1178.R)

NIIN: 01-416-5453
In stock
NSN: 5331-01-416-5453
FSC Code: 5331
MPN: 0011178R

5331-01-487-4175 (001.05.1423)

NIIN: 01-487-4175
In stock
NSN: 5331-01-487-4175
FSC Code: 5331
MPN: 001051423

5331-01-513-2328 (00100317N)

NIIN: 01-513-2328
In stock
NSN: 5331-01-513-2328
FSC Code: 5331
MPN: 00100317N

5331-01-189-3637 (22936-TS)

NIIN: 01-189-3637
In stock
NSN: 5331-01-189-3637
FSC Code: 5331
MPN: 22936TS

5331-01-091-0007 (22950-1)

NIIN: 01-091-0007
In stock
NSN: 5331-01-091-0007
FSC Code: 5331
MPN: 229501

5331-01-091-0006 (22950-2)

NIIN: 01-091-0006
In stock
NSN: 5331-01-091-0006
FSC Code: 5331
MPN: 229502

5331-01-091-2018 (22950-3)

NIIN: 01-091-2018
In stock
NSN: 5331-01-091-2018
FSC Code: 5331
MPN: 229503

5331-01-555-8576 (H547-0001-0010472-264)

NIIN: 01-555-8576
In stock
NSN: 5331-01-555-8576
FSC Code: 5331
MPN: H54700010010472264

5331-01-555-8571 (H547-0001-0010472-165)

NIIN: 01-555-8571
In stock
NSN: 5331-01-555-8571
FSC Code: 5331
MPN: H54700010010472165

5331-01-555-8564 (H547-0001-0010472-168)

NIIN: 01-555-8564
In stock
NSN: 5331-01-555-8564
FSC Code: 5331
MPN: H54700010010472168

5331-01-348-1732 (00109XX-BCP)

NIIN: 01-348-1732
In stock
NSN: 5331-01-348-1732
FSC Code: 5331
MPN: 00109XXBCP

5331-01-487-8320 (0010A)

NIIN: 01-487-8320
In stock
NSN: 5331-01-487-8320
FSC Code: 5331
MPN: 0010A

5331-01-540-3546 (00-1108B)

NIIN: 01-540-3546
In stock
NSN: 5331-01-540-3546
FSC Code: 5331
MPN: 001108B

5331-01-509-5427 (001112.650.000)

NIIN: 01-509-5427
In stock
NSN: 5331-01-509-5427
FSC Code: 5331
MPN: 001112650000

5331-01-509-5431 (001113.650.000)

NIIN: 01-509-5431
In stock
NSN: 5331-01-509-5431
FSC Code: 5331
MPN: 001113650000

5331-01-209-8006 (229-8309)

NIIN: 01-209-8006
In stock
NSN: 5331-01-209-8006
FSC Code: 5331
MPN: 2298309

5331-01-426-8813 (001181.650.000)

NIIN: 01-426-8813
In stock
NSN: 5331-01-426-8813
FSC Code: 5331
MPN: 001181650000

5331-01-426-8803 (001184.650.000)

NIIN: 01-426-8803
In stock
NSN: 5331-01-426-8803
FSC Code: 5331
MPN: 001184650000

5331-01-426-8797 (001182.650.000)

NIIN: 01-426-8797
In stock
NSN: 5331-01-426-8797
FSC Code: 5331
MPN: 001182650000

5331-01-527-1532 (0011V)

NIIN: 01-527-1532
In stock
NSN: 5331-01-527-1532
FSC Code: 5331
MPN: 0011V

5331-01-361-1296 (00120562031-39)

NIIN: 01-361-1296
In stock
NSN: 5331-01-361-1296
FSC Code: 5331
MPN: 0012056203139

5331-01-355-2710 (00120562031-29)

NIIN: 01-355-2710
In stock
NSN: 5331-01-355-2710
FSC Code: 5331
MPN: 0012056203129

5331-01-391-2895 (00121-063-00)

NIIN: 01-391-2895
In stock
NSN: 5331-01-391-2895
FSC Code: 5331
MPN: 0012106300

5331-01-391-5521 (00121-064-00)

NIIN: 01-391-5521
In stock
NSN: 5331-01-391-5521
FSC Code: 5331
MPN: 0012106400

5331-01-391-2894 (00121-073-00)

NIIN: 01-391-2894
In stock
NSN: 5331-01-391-2894
FSC Code: 5331
MPN: 0012107300

5331-01-555-0187 (00122E1415G-1)

NIIN: 01-555-0187
In stock
NSN: 5331-01-555-0187
FSC Code: 5331
MPN: 00122E1415G1

5331-01-540-3547 (00-1238A)

NIIN: 01-540-3547
In stock
NSN: 5331-01-540-3547
FSC Code: 5331
MPN: 001238A

5331-01-555-0189 (00122E1415G-1)

NIIN: 01-555-0189
In stock
NSN: 5331-01-555-0189
FSC Code: 5331
MPN: 00122E1415G1

5331-01-450-2525 (00-1230-59)

NIIN: 01-450-2525
In stock
NSN: 5331-01-450-2525
FSC Code: 5331
MPN: 00123059

5331-00-585-7726 (2-29PS1-30-5)

NIIN: 00-585-7726
In stock
NSN: 5331-00-585-7726
FSC Code: 5331
MPN: 229PS1305

5331-01-494-7451 (CGR1601-0125-5)

NIIN: 01-494-7451
In stock
NSN: 5331-01-494-7451
FSC Code: 5331
MPN: CGR160101255

5331-01-218-9815 (22CR861)

NIIN: 01-218-9815
In stock
NSN: 5331-01-218-9815
FSC Code: 5331
MPN: 22CR861

5331-01-219-3494 (22CR895)

NIIN: 01-219-3494
In stock
NSN: 5331-01-219-3494
FSC Code: 5331
MPN: 22CR895

5331-01-218-9817 (22CR864)

NIIN: 01-218-9817
In stock
NSN: 5331-01-218-9817
FSC Code: 5331
MPN: 22CR864

5331-01-218-9816 (22CR874)

NIIN: 01-218-9816
In stock
NSN: 5331-01-218-9816
FSC Code: 5331
MPN: 22CR874

5331-01-217-8963 (22CR902)

NIIN: 01-217-8963
In stock
NSN: 5331-01-217-8963
FSC Code: 5331
MPN: 22CR902

5331-01-219-3493 (22CR876)

NIIN: 01-219-3493
In stock
NSN: 5331-01-219-3493
FSC Code: 5331
MPN: 22CR876

5331-01-513-2331 (00162064N)

NIIN: 01-513-2331
In stock
NSN: 5331-01-513-2331
FSC Code: 5331
MPN: 00162064N