Skip to content
News Industries Part Directory Excess Inventory Management Solutions Sitemap

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.

5331-01-485-8217 (8U-4125)

NIIN: 01-485-8217
In stock
NSN: 5331-01-485-8217
FSC Code: 5331
MPN: 8U4125

5331-01-554-2275 (8U-2522)

NIIN: 01-554-2275
In stock
NSN: 5331-01-554-2275
FSC Code: 5331
MPN: 8U2522

5331-01-531-1851 (8TB0912)

NIIN: 01-531-1851
In stock
NSN: 5331-01-531-1851
FSC Code: 5331
MPN: 8TB0912

5331-01-531-1832 (KK71EW154)

NIIN: 01-531-1832
In stock
NSN: 5331-01-531-1832
FSC Code: 5331
MPN: KK71EW154

5331-01-531-1843 (8TB0293)

NIIN: 01-531-1843
In stock
NSN: 5331-01-531-1843
FSC Code: 5331
MPN: 8TB0293

5331-01-531-1869 (8TB0281)

NIIN: 01-531-1869
In stock
NSN: 5331-01-531-1869
FSC Code: 5331
MPN: 8TB0281

5331-01-531-1829 (8TB0911)

NIIN: 01-531-1829
In stock
NSN: 5331-01-531-1829
FSC Code: 5331
MPN: 8TB0911

5331-01-531-1891 (8TB0286)

NIIN: 01-531-1891
In stock
NSN: 5331-01-531-1891
FSC Code: 5331
MPN: 8TB0286

5331-01-531-1864 (8TB0280)

NIIN: 01-531-1864
In stock
NSN: 5331-01-531-1864
FSC Code: 5331
MPN: 8TB0280

5331-01-531-1837 (8TB0292)

NIIN: 01-531-1837
In stock
NSN: 5331-01-531-1837
FSC Code: 5331
MPN: 8TB0292

5331-01-531-1886 (8TB0283)

NIIN: 01-531-1886
In stock
NSN: 5331-01-531-1886
FSC Code: 5331
MPN: 8TB0283

5331-01-514-2019 (8T9521)

NIIN: 01-514-2019
In stock
NSN: 5331-01-514-2019
FSC Code: 5331
MPN: 8T9521

5331-01-509-2289 (8T-6444)

NIIN: 01-509-2289
In stock
NSN: 5331-01-509-2289
FSC Code: 5331
MPN: 8T6444

5331-01-485-8200 (8T-7878)

NIIN: 01-485-8200
In stock
NSN: 5331-01-485-8200
FSC Code: 5331
MPN: 8T7878

5331-01-486-0786 (8T7877)

NIIN: 01-486-0786
In stock
NSN: 5331-01-486-0786
FSC Code: 5331
MPN: 8T7877

5331-01-529-8280 (CV150540D)

NIIN: 01-529-8280
In stock
NSN: 5331-01-529-8280
FSC Code: 5331
MPN: CV150540D

5331-01-506-6949 (8T-7813)

NIIN: 01-506-6949
In stock
NSN: 5331-01-506-6949
FSC Code: 5331
MPN: 8T7813

5331-01-386-8137 (8T3539)

NIIN: 01-386-8137
In stock
NSN: 5331-01-386-8137
FSC Code: 5331
MPN: 8T3539

5331-01-473-6129 (8T2360)

NIIN: 01-473-6129
In stock
NSN: 5331-01-473-6129
FSC Code: 5331
MPN: 8T2360

5331-01-473-6133 (8T2361)

NIIN: 01-473-6133
In stock
NSN: 5331-01-473-6133
FSC Code: 5331
MPN: 8T2361

5331-01-524-7279 (8T1703)

NIIN: 01-524-7279
In stock
NSN: 5331-01-524-7279
FSC Code: 5331
MPN: 8T1703

5331-01-342-2748 (8T-0568)

NIIN: 01-342-2748
In stock
NSN: 5331-01-342-2748
FSC Code: 5331
MPN: 8T0568

5331-01-378-3667 (8T0315)

NIIN: 01-378-3667
In stock
NSN: 5331-01-378-3667
FSC Code: 5331
MPN: 8T0315

5331-01-485-8212 (8T-0116)

NIIN: 01-485-8212
In stock
NSN: 5331-01-485-8212
FSC Code: 5331
MPN: 8T0116

5331-01-485-8214 (8T-0117)

NIIN: 01-485-8214
In stock
NSN: 5331-01-485-8214
FSC Code: 5331
MPN: 8T0117

5331-01-563-0801 (8R)

NIIN: 01-563-0801
In stock
NSN: 5331-01-563-0801
FSC Code: 5331
MPN: 8R

5331-01-473-7150 (8Q0-V1)

NIIN: 01-473-7150
In stock
NSN: 5331-01-473-7150
FSC Code: 5331
MPN: 8Q0V1

5331-01-473-6920 (8P-2019)

NIIN: 01-473-6920
In stock
NSN: 5331-01-473-6920
FSC Code: 5331
MPN: 8P2019

5331-01-564-9620 (8M6509)

NIIN: 01-564-9620
In stock
NSN: 5331-01-564-9620
FSC Code: 5331
MPN: 8M6509

5331-01-481-0755 (8LJA4X73G0)

NIIN: 01-481-0755
In stock
NSN: 5331-01-481-0755
FSC Code: 5331
MPN: 8LJA4X73G0

5331-01-534-4921 (J0RG-10)

NIIN: 01-534-4921
In stock
NSN: 5331-01-534-4921
FSC Code: 5331
MPN: J0RG10

5331-01-558-3714 (BCP8044)

NIIN: 01-558-3714
In stock
NSN: 5331-01-558-3714
FSC Code: 5331
MPN: BCP8044

5331-01-525-1903 (RD-5-11015-0M)

NIIN: 01-525-1903
In stock
NSN: 5331-01-525-1903
FSC Code: 5331
MPN: RD5110150M

5331-01-379-8939 (8J0346)

NIIN: 01-379-8939
In stock
NSN: 5331-01-379-8939
FSC Code: 5331
MPN: 8J0346

5331-01-438-8025 (8F15L15F50)

NIIN: 01-438-8025
In stock
NSN: 5331-01-438-8025
FSC Code: 5331
MPN: 8F15L15F50

5331-00-446-2575 (M8330-5)

NIIN: 00-446-2575
In stock
NSN: 5331-00-446-2575
FSC Code: 5331
MPN: M83305

5331-00-446-2574 (M8330-17)

NIIN: 00-446-2574
In stock
NSN: 5331-00-446-2574
FSC Code: 5331
MPN: M833017

5331-01-249-4225 (M83248-924)

NIIN: 01-249-4225
In stock
NSN: 5331-01-249-4225
FSC Code: 5331
MPN: M83248924

5331-01-058-7108 (M8328/2-914)

NIIN: 01-058-7108
In stock
NSN: 5331-01-058-7108
FSC Code: 5331
MPN: M83282914

5331-01-249-4226 (M83248-016)

NIIN: 01-249-4226
In stock
NSN: 5331-01-249-4226
FSC Code: 5331
MPN: M83248016

5331-01-088-6870 (M83248/2-901)

NIIN: 01-088-6870
In stock
NSN: 5331-01-088-6870
FSC Code: 5331
MPN: M832482901

5331-01-088-6107 (M83248/2-918)

NIIN: 01-088-6107
In stock
NSN: 5331-01-088-6107
FSC Code: 5331
MPN: M832482918

5331-01-089-2576 (M83248/2-913)

NIIN: 01-089-2576
In stock
NSN: 5331-01-089-2576
FSC Code: 5331
MPN: M832482913

5331-01-264-4239 (M83248/2-439)

NIIN: 01-264-4239
In stock
NSN: 5331-01-264-4239
FSC Code: 5331
MPN: M832482439

5331-01-265-8992 (M83248/2-446)

NIIN: 01-265-8992
In stock
NSN: 5331-01-265-8992
FSC Code: 5331
MPN: M832482446

5331-01-324-8866 (M83248/2-368)

NIIN: 01-324-8866
In stock
NSN: 5331-01-324-8866
FSC Code: 5331
MPN: M832482368

5331-00-338-1302 (M83248/2-337)

NIIN: 00-338-1302
In stock
NSN: 5331-00-338-1302
FSC Code: 5331
MPN: M832482337

5331-01-127-0972 (M83248/2-235)

NIIN: 01-127-0972
In stock
NSN: 5331-01-127-0972
FSC Code: 5331
MPN: M832482235