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.

5331-01-398-1330 (D4886-1963ITEM10)

NIIN: 01-398-1330
In stock
NSN: 5331-01-398-1330
FSC Code: 5331
MPN: D48861963ITEM10

5331-01-422-9956 (D-452-117)

NIIN: 01-422-9956
In stock
NSN: 5331-01-422-9956
FSC Code: 5331
MPN: D452117

5331-01-420-2249 (D-452-119ITEMD)

NIIN: 01-420-2249
In stock
NSN: 5331-01-420-2249
FSC Code: 5331
MPN: D452119ITEMD

5331-01-424-1834 (D-452-119)

NIIN: 01-424-1834
In stock
NSN: 5331-01-424-1834
FSC Code: 5331
MPN: D452119

5331-01-482-9342 (M83248/1-027CP)

NIIN: 01-482-9342
In stock
NSN: 5331-01-482-9342
FSC Code: 5331
MPN: M832481027CP

5331-01-415-5276 (D-4074-33-2491)

NIIN: 01-415-5276
In stock
NSN: 5331-01-415-5276
FSC Code: 5331
MPN: D4074332491

5331-01-408-9654 (D-4081-33-2858)

NIIN: 01-408-9654
In stock
NSN: 5331-01-408-9654
FSC Code: 5331
MPN: D4081332858

5331-01-414-4218 (D-4032-33-2286)

NIIN: 01-414-4218
In stock
NSN: 5331-01-414-4218
FSC Code: 5331
MPN: D4032332286

5331-01-343-2660 (D-4032-33A-1161)

NIIN: 01-343-2660
In stock
NSN: 5331-01-343-2660
FSC Code: 5331
MPN: D403233A1161

5331-01-360-5355 (D-4037-33-1011)

NIIN: 01-360-5355
In stock
NSN: 5331-01-360-5355
FSC Code: 5331
MPN: D4037331011

5331-01-370-8371 (D-4028-1-RB-33-1668)

NIIN: 01-370-8371
In stock
NSN: 5331-01-370-8371
FSC Code: 5331
MPN: D40281RB331668

5331-01-447-5016 (D3J0382)

NIIN: 01-447-5016
In stock
NSN: 5331-01-447-5016
FSC Code: 5331
MPN: D3J0382

5331-01-447-3985 (D40-047-2110)

NIIN: 01-447-3985
In stock
NSN: 5331-01-447-3985
FSC Code: 5331
MPN: D400472110

5331-01-350-1348 (D36103)

NIIN: 01-350-1348
In stock
NSN: 5331-01-350-1348
FSC Code: 5331
MPN: D36103

5331-01-080-2996 (SM-C-852199-1)

NIIN: 01-080-2996
In stock
NSN: 5331-01-080-2996
FSC Code: 5331
MPN: SMC8521991

5331-01-447-3964 (D35-080-2110)

NIIN: 01-447-3964
In stock
NSN: 5331-01-447-3964
FSC Code: 5331
MPN: D350802110

5331-01-463-4725 (D3-538)

NIIN: 01-463-4725
In stock
NSN: 5331-01-463-4725
FSC Code: 5331
MPN: D3538

5331-01-557-1251 (T10540866)

NIIN: 01-557-1251
In stock
NSN: 5331-01-557-1251
FSC Code: 5331
MPN: T10540866

5331-01-447-3976 (D35-075-2110)

NIIN: 01-447-3976
In stock
NSN: 5331-01-447-3976
FSC Code: 5331
MPN: D350752110

5331-01-447-3968 (D35-073-2110)

NIIN: 01-447-3968
In stock
NSN: 5331-01-447-3968
FSC Code: 5331
MPN: D350732110

5331-01-557-1253 (T10540864)

NIIN: 01-557-1253
In stock
NSN: 5331-01-557-1253
FSC Code: 5331
MPN: T10540864

5331-01-557-1250 (T10540865)

NIIN: 01-557-1250
In stock
NSN: 5331-01-557-1250
FSC Code: 5331
MPN: T10540865

5331-01-446-5615 (D35-037-2110)

NIIN: 01-446-5615
In stock
NSN: 5331-01-446-5615
FSC Code: 5331
MPN: D350372110

5331-01-449-9827 (N57406-93)

NIIN: 01-449-9827
In stock
NSN: 5331-01-449-9827
FSC Code: 5331
MPN: N5740693

5331-01-529-1160 (D333-3873-T)

NIIN: 01-529-1160
In stock
NSN: 5331-01-529-1160
FSC Code: 5331
MPN: D3333873T

5331-01-548-8004 (N674-70-166)

NIIN: 01-548-8004
In stock
NSN: 5331-01-548-8004
FSC Code: 5331
MPN: N67470166

5331-01-074-7889 (SM-C-772707-1)

NIIN: 01-074-7889
In stock
NSN: 5331-01-074-7889
FSC Code: 5331
MPN: SMC7727071

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