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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.

5331-01-205-5043 (P49708-0013)

NIIN: 01-205-5043
In stock
NSN: 5331-01-205-5043
FSC Code: 5331
MPN: P497080013

5331-00-099-8311 (P49708-0014)

NIIN: 00-099-8311
In stock
NSN: 5331-00-099-8311
FSC Code: 5331
MPN: P497080014

5331-00-401-0862 (P49708-0015)

NIIN: 00-401-0862
In stock
NSN: 5331-00-401-0862
FSC Code: 5331
MPN: P497080015

5331-00-469-6918 (P49708-0010)

NIIN: 00-469-6918
In stock
NSN: 5331-00-469-6918
FSC Code: 5331
MPN: P497080010

5331-01-086-3510 (P49708-0011)

NIIN: 01-086-3510
In stock
NSN: 5331-01-086-3510
FSC Code: 5331
MPN: P497080011

5331-01-090-1551 (P49708-0002)

NIIN: 01-090-1551
In stock
NSN: 5331-01-090-1551
FSC Code: 5331
MPN: P497080002

5331-00-868-0917 (P49666-904)

NIIN: 00-868-0917
In stock
NSN: 5331-00-868-0917
FSC Code: 5331
MPN: P49666904

5331-01-233-2943 (P49666-912)

NIIN: 01-233-2943
In stock
NSN: 5331-01-233-2943
FSC Code: 5331
MPN: P49666912

5331-01-265-8814 (P49584-001)

NIIN: 01-265-8814
In stock
NSN: 5331-01-265-8814
FSC Code: 5331
MPN: P49584001

5331-01-260-4696 (P49206)

NIIN: 01-260-4696
In stock
NSN: 5331-01-260-4696
FSC Code: 5331
MPN: P49206

5331-01-004-6980 (P49490-0008)

NIIN: 01-004-6980
In stock
NSN: 5331-01-004-6980
FSC Code: 5331
MPN: P494900008

5331-01-189-8335 (P49490-0009)

NIIN: 01-189-8335
In stock
NSN: 5331-01-189-8335
FSC Code: 5331
MPN: P494900009

5331-01-189-8336 (P49490-0012)

NIIN: 01-189-8336
In stock
NSN: 5331-01-189-8336
FSC Code: 5331
MPN: P494900012

5331-01-036-7407 (P49490-0011)

NIIN: 01-036-7407
In stock
NSN: 5331-01-036-7407
FSC Code: 5331
MPN: P494900011

5331-01-045-2949 (P48745)

NIIN: 01-045-2949
In stock
NSN: 5331-01-045-2949
FSC Code: 5331
MPN: P48745

5331-01-099-7118 (P-48080)

NIIN: 01-099-7118
In stock
NSN: 5331-01-099-7118
FSC Code: 5331
MPN: P48080

5331-01-195-1511 (P46051)

NIIN: 01-195-1511
In stock
NSN: 5331-01-195-1511
FSC Code: 5331
MPN: P46051

5331-00-406-0572 (P477386)

NIIN: 00-406-0572
In stock
NSN: 5331-00-406-0572
FSC Code: 5331
MPN: P477386

5331-00-108-1718 (P459-1)

NIIN: 00-108-1718
In stock
NSN: 5331-00-108-1718
FSC Code: 5331
MPN: P4591

5331-00-439-2632 (P459-2)

NIIN: 00-439-2632
In stock
NSN: 5331-00-439-2632
FSC Code: 5331
MPN: P4592

5331-00-868-7700 (P45-23)

NIIN: 00-868-7700
In stock
NSN: 5331-00-868-7700
FSC Code: 5331
MPN: P4523

5331-00-505-3665 (P44121)

NIIN: 00-505-3665
In stock
NSN: 5331-00-505-3665
FSC Code: 5331
MPN: P44121

5331-01-571-4807 (AT314538)

NIIN: 01-571-4807
In stock
NSN: 5331-01-571-4807
FSC Code: 5331
MPN: AT314538

5331-01-549-9743 (AT314441)

NIIN: 01-549-9743
In stock
NSN: 5331-01-549-9743
FSC Code: 5331
MPN: AT314441

5331-01-567-7903 (AT321989)

NIIN: 01-567-7903
In stock
NSN: 5331-01-567-7903
FSC Code: 5331
MPN: AT321989

5331-01-570-2787 (AT310649)

NIIN: 01-570-2787
In stock
NSN: 5331-01-570-2787
FSC Code: 5331
MPN: AT310649

5331-01-474-0419 (AT318035)

NIIN: 01-474-0419
In stock
NSN: 5331-01-474-0419
FSC Code: 5331
MPN: AT318035

5331-01-217-2012 (P-422666-23)

NIIN: 01-217-2012
In stock
NSN: 5331-01-217-2012
FSC Code: 5331
MPN: P42266623

5331-01-217-2009 (P-422666-007)

NIIN: 01-217-2009
In stock
NSN: 5331-01-217-2009
FSC Code: 5331
MPN: P422666007

5331-01-218-1195 (P-422666-017)

NIIN: 01-218-1195
In stock
NSN: 5331-01-218-1195
FSC Code: 5331
MPN: P422666017

5331-01-217-2011 (P-422666-010)

NIIN: 01-217-2011
In stock
NSN: 5331-01-217-2011
FSC Code: 5331
MPN: P422666010

5331-01-473-9864 (AT264324)

NIIN: 01-473-9864
In stock
NSN: 5331-01-473-9864
FSC Code: 5331
MPN: AT264324

5331-01-194-0360 (P-41301-091)

NIIN: 01-194-0360
In stock
NSN: 5331-01-194-0360
FSC Code: 5331
MPN: P41301091

5331-01-475-3885 (AT264347)

NIIN: 01-475-3885
In stock
NSN: 5331-01-475-3885
FSC Code: 5331
MPN: AT264347

5331-01-331-9298 (P40B)

NIIN: 01-331-9298
In stock
NSN: 5331-01-331-9298
FSC Code: 5331
MPN: P40B

5331-01-549-0868 (AT264348)

NIIN: 01-549-0868
In stock
NSN: 5331-01-549-0868
FSC Code: 5331
MPN: AT264348

5331-01-474-4239 (AT264320)

NIIN: 01-474-4239
In stock
NSN: 5331-01-474-4239
FSC Code: 5331
MPN: AT264320

5331-01-474-4241 (AT264339)

NIIN: 01-474-4241
In stock
NSN: 5331-01-474-4241
FSC Code: 5331
MPN: AT264339

5331-01-549-5016 (AT259636)

NIIN: 01-549-5016
In stock
NSN: 5331-01-549-5016
FSC Code: 5331
MPN: AT259636

5331-01-474-4237 (AT264333)

NIIN: 01-474-4237
In stock
NSN: 5331-01-474-4237
FSC Code: 5331
MPN: AT264333

5331-01-475-0341 (AT250040)

NIIN: 01-475-0341
In stock
NSN: 5331-01-475-0341
FSC Code: 5331
MPN: AT250040

5331-01-475-3685 (AT250098)

NIIN: 01-475-3685
In stock
NSN: 5331-01-475-3685
FSC Code: 5331
MPN: AT250098

5331-01-091-3337 (P408)

NIIN: 01-091-3337
In stock
NSN: 5331-01-091-3337
FSC Code: 5331
MPN: P408

5331-01-144-8813 (P4062A)

NIIN: 01-144-8813
In stock
NSN: 5331-01-144-8813
FSC Code: 5331
MPN: P4062A

5331-01-475-4356 (AT210564)

NIIN: 01-475-4356
In stock
NSN: 5331-01-475-4356
FSC Code: 5331
MPN: AT210564

5331-01-473-7934 (AT181001)

NIIN: 01-473-7934
In stock
NSN: 5331-01-473-7934
FSC Code: 5331
MPN: AT181001

5331-01-473-8054 (AT180019)

NIIN: 01-473-8054
In stock
NSN: 5331-01-473-8054
FSC Code: 5331
MPN: AT180019

5331-01-473-8079 (AT180012)

NIIN: 01-473-8079
In stock
NSN: 5331-01-473-8079
FSC Code: 5331
MPN: AT180012