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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.

5331-01-349-4862 (D31968)

NIIN: 01-349-4862
In stock
NSN: 5331-01-349-4862
FSC Code: 5331
MPN: D31968

5331-01-125-6270 (SM-C-772429-10)

NIIN: 01-125-6270
In stock
NSN: 5331-01-125-6270
FSC Code: 5331
MPN: SMC77242910

5331-01-518-3870 (T10540499)

NIIN: 01-518-3870
In stock
NSN: 5331-01-518-3870
FSC Code: 5331
MPN: T10540499

5331-15-198-3082 (D3115428A)

NIIN: 15-198-3082
In stock
NSN: 5331-15-198-3082
FSC Code: 5331
MPN: D3115428A

5331-15-180-2416 (S9233-DS-MMC-010)

NIIN: 15-180-2416
In stock
NSN: 5331-15-180-2416
FSC Code: 5331
MPN: S9233DSMMC010

5331-15-162-3296 (D3114666A)

NIIN: 15-162-3296
In stock
NSN: 5331-15-162-3296
FSC Code: 5331
MPN: D3114666A

5331-15-163-3095 (D3114475A)

NIIN: 15-163-3095
In stock
NSN: 5331-15-163-3095
FSC Code: 5331
MPN: D3114475A

5331-15-163-3117 (D3114661A)

NIIN: 15-163-3117
In stock
NSN: 5331-15-163-3117
FSC Code: 5331
MPN: D3114661A

5331-15-180-2383 (S9233-DS-MMC-010)

NIIN: 15-180-2383
In stock
NSN: 5331-15-180-2383
FSC Code: 5331
MPN: S9233DSMMC010

5331-15-180-2375 (S9233-DS-MMC-010)

NIIN: 15-180-2375
In stock
NSN: 5331-15-180-2375
FSC Code: 5331
MPN: S9233DSMMC010

5331-01-522-4999 (D3114647A)

NIIN: 01-522-4999
In stock
NSN: 5331-01-522-4999
FSC Code: 5331
MPN: D3114647A

5331-15-180-2376 (S9233-DS-MMC-010)

NIIN: 15-180-2376
In stock
NSN: 5331-15-180-2376
FSC Code: 5331
MPN: S9233DSMMC010

5331-15-180-0616 (S9233-DS-MMC-010)

NIIN: 15-180-0616
In stock
NSN: 5331-15-180-0616
FSC Code: 5331
MPN: S9233DSMMC010

5331-15-180-0619 (S9233-DS-MMC-010)

NIIN: 15-180-0619
In stock
NSN: 5331-15-180-0619
FSC Code: 5331
MPN: S9233DSMMC010

5331-15-162-3297 (D3114642A)

NIIN: 15-162-3297
In stock
NSN: 5331-15-162-3297
FSC Code: 5331
MPN: D3114642A

5331-15-180-0623 (S9233-DS-MMC-010)

NIIN: 15-180-0623
In stock
NSN: 5331-15-180-0623
FSC Code: 5331
MPN: S9233DSMMC010

5331-01-522-5006 (D3114433A)

NIIN: 01-522-5006
In stock
NSN: 5331-01-522-5006
FSC Code: 5331
MPN: D3114433A

5331-01-522-5005 (D3114427A)

NIIN: 01-522-5005
In stock
NSN: 5331-01-522-5005
FSC Code: 5331
MPN: D3114427A

5331-15-175-0816 (D3114464A)

NIIN: 15-175-0816
In stock
NSN: 5331-15-175-0816
FSC Code: 5331
MPN: D3114464A

5331-15-180-2431 (S9233-DS-MMC-010)

NIIN: 15-180-2431
In stock
NSN: 5331-15-180-2431
FSC Code: 5331
MPN: S9233DSMMC010

5331-01-522-5004 (D3113431A)

NIIN: 01-522-5004
In stock
NSN: 5331-01-522-5004
FSC Code: 5331
MPN: D3113431A

5331-15-180-0622 (S9233-DS-MMC-010)

NIIN: 15-180-0622
In stock
NSN: 5331-15-180-0622
FSC Code: 5331
MPN: S9233DSMMC010

5331-15-163-3118 (D3114059A)

NIIN: 15-163-3118
In stock
NSN: 5331-15-163-3118
FSC Code: 5331
MPN: D3114059A

5331-15-180-2430 (S9233-DS-MMC-010)

NIIN: 15-180-2430
In stock
NSN: 5331-15-180-2430
FSC Code: 5331
MPN: S9233DSMMC010

5331-15-198-3144 (OR4093SI80)

NIIN: 15-198-3144
In stock
NSN: 5331-15-198-3144
FSC Code: 5331
MPN: OR4093SI80

5331-15-163-3115 (D3113451A)

NIIN: 15-163-3115
In stock
NSN: 5331-15-163-3115
FSC Code: 5331
MPN: D3113451A

5331-01-522-5000 (D3114401A)

NIIN: 01-522-5000
In stock
NSN: 5331-01-522-5000
FSC Code: 5331
MPN: D3114401A

5331-15-199-1666 (D3113631A)

NIIN: 15-199-1666
In stock
NSN: 5331-15-199-1666
FSC Code: 5331
MPN: D3113631A

5331-15-180-0621 (S9233-DS-MMC-010)

NIIN: 15-180-0621
In stock
NSN: 5331-15-180-0621
FSC Code: 5331
MPN: S9233DSMMC010

5331-01-535-1317 (D3113617A)

NIIN: 01-535-1317
In stock
NSN: 5331-01-535-1317
FSC Code: 5331
MPN: D3113617A

5331-01-522-5008 (D3113632A)

NIIN: 01-522-5008
In stock
NSN: 5331-01-522-5008
FSC Code: 5331
MPN: D3113632A

5331-15-199-4329 (D3113439A)

NIIN: 15-199-4329
In stock
NSN: 5331-15-199-4329
FSC Code: 5331
MPN: D3113439A

5331-15-163-3109 (D3113438A)

NIIN: 15-163-3109
In stock
NSN: 5331-15-163-3109
FSC Code: 5331
MPN: D3113438A

5331-15-163-3110 (D3112409A)

NIIN: 15-163-3110
In stock
NSN: 5331-15-163-3110
FSC Code: 5331
MPN: D3112409A

5331-01-522-5007 (D3113435A)

NIIN: 01-522-5007
In stock
NSN: 5331-01-522-5007
FSC Code: 5331
MPN: D3113435A

5331-15-180-2451 (S9233-DS-MMC-010FIG)

NIIN: 15-180-2451
In stock
NSN: 5331-15-180-2451
FSC Code: 5331
MPN: S9233DSMMC010FIG

5331-15-163-3104 (D3113432A)

NIIN: 15-163-3104
In stock
NSN: 5331-15-163-3104
FSC Code: 5331
MPN: D3113432A

5331-15-162-3290 (D3113426A)

NIIN: 15-162-3290
In stock
NSN: 5331-15-162-3290
FSC Code: 5331
MPN: D3113426A

5331-15-180-2378 (S9233-DS-MMC-010)

NIIN: 15-180-2378
In stock
NSN: 5331-15-180-2378
FSC Code: 5331
MPN: S9233DSMMC010

5331-01-350-2982 (D26115)

NIIN: 01-350-2982
In stock
NSN: 5331-01-350-2982
FSC Code: 5331
MPN: D26115

5331-01-429-2590 (SK-2839)

NIIN: 01-429-2590
In stock
NSN: 5331-01-429-2590
FSC Code: 5331
MPN: SK2839

5331-01-353-8901 (D2-573)

NIIN: 01-353-8901
In stock
NSN: 5331-01-353-8901
FSC Code: 5331
MPN: D2573

5331-01-500-9523 (SK-2864)

NIIN: 01-500-9523
In stock
NSN: 5331-01-500-9523
FSC Code: 5331
MPN: SK2864

5331-01-445-7431 (SK-2882)

NIIN: 01-445-7431
In stock
NSN: 5331-01-445-7431
FSC Code: 5331
MPN: SK2882

5331-01-353-5988 (D2-570)

NIIN: 01-353-5988
In stock
NSN: 5331-01-353-5988
FSC Code: 5331
MPN: D2570

5331-01-524-2479 (SK-2857)

NIIN: 01-524-2479
In stock
NSN: 5331-01-524-2479
FSC Code: 5331
MPN: SK2857

5331-01-420-9809 (PL-H25C0700001)

NIIN: 01-420-9809
In stock
NSN: 5331-01-420-9809
FSC Code: 5331
MPN: PLH25C0700001

5331-01-420-6692 (PL-H25C0700001)

NIIN: 01-420-6692
In stock
NSN: 5331-01-420-6692
FSC Code: 5331
MPN: PLH25C0700001