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.

5331-01-487-3038 (02250056-270)

NIIN: 01-487-3038
In stock
NSN: 5331-01-487-3038
FSC Code: 5331
MPN: 02250056270

5331-01-506-4744 (0-2-2-5)

NIIN: 01-506-4744
In stock
NSN: 5331-01-506-4744
FSC Code: 5331
MPN: 0225

5331-01-430-0113 (022525-013-HT)

NIIN: 01-430-0113
In stock
NSN: 5331-01-430-0113
FSC Code: 5331
MPN: 022525013HT

5331-01-433-2677 (022525-007-70)

NIIN: 01-433-2677
In stock
NSN: 5331-01-433-2677
FSC Code: 5331
MPN: 02252500770

5331-01-430-0107 (022525-001-70)

NIIN: 01-430-0107
In stock
NSN: 5331-01-430-0107
FSC Code: 5331
MPN: 02252500170

5331-01-433-2683 (022525-005-HT)

NIIN: 01-433-2683
In stock
NSN: 5331-01-433-2683
FSC Code: 5331
MPN: 022525005HT

5331-01-507-5731 (022525-101-VI)

NIIN: 01-507-5731
In stock
NSN: 5331-01-507-5731
FSC Code: 5331
MPN: 022525101VI

5331-01-508-1721 (022525-003-V1)

NIIN: 01-508-1721
In stock
NSN: 5331-01-508-1721
FSC Code: 5331
MPN: 022525003V1

5331-01-486-6726 (022525-006-HT)

NIIN: 01-486-6726
In stock
NSN: 5331-01-486-6726
FSC Code: 5331
MPN: 022525006HT

5331-01-088-8909 (248067-4)

NIIN: 01-088-8909
In stock
NSN: 5331-01-088-8909
FSC Code: 5331
MPN: 2480674

5331-01-089-1406 (248067-9)

NIIN: 01-089-1406
In stock
NSN: 5331-01-089-1406
FSC Code: 5331
MPN: 2480679

5331-99-825-8861 (02-27-12-027)

NIIN: 99-825-8861
In stock
NSN: 5331-99-825-8861
FSC Code: 5331
MPN: 022712027

5331-99-950-5866 (BSISO3601-1SIZE012NBR.87)

NIIN: 99-950-5866
In stock
NSN: 5331-99-950-5866
FSC Code: 5331
MPN: BSISO36011SIZE012NBR87

5331-01-211-1327 (24842-22021)

NIIN: 01-211-1327
In stock
NSN: 5331-01-211-1327
FSC Code: 5331
MPN: 2484222021

5331-01-219-9070 (24850-40)

NIIN: 01-219-9070
In stock
NSN: 5331-01-219-9070
FSC Code: 5331
MPN: 2485040

5331-01-440-3248 (02-2800-00103)

NIIN: 01-440-3248
In stock
NSN: 5331-01-440-3248
FSC Code: 5331
MPN: 02280000103

5331-00-684-2923 (24849-8)

NIIN: 00-684-2923
In stock
NSN: 5331-00-684-2923
FSC Code: 5331
MPN: 248498

5331-00-965-5147 (24850-38)

NIIN: 00-965-5147
In stock
NSN: 5331-00-965-5147
FSC Code: 5331
MPN: 2485038

5331-01-504-5462 (FIND NO.30 112551000FINDNO30)

NIIN: 01-504-5462
In stock
NSN: 5331-01-504-5462
FSC Code: 5331
MPN: FINDNO30112551000FINDNO30

5331-00-057-8463 (24850-12)

NIIN: 00-057-8463
In stock
NSN: 5331-00-057-8463
FSC Code: 5331
MPN: 2485012

5331-00-037-8821 (248-59)

NIIN: 00-037-8821
In stock
NSN: 5331-00-037-8821
FSC Code: 5331
MPN: 24859

5331-01-311-5948 (2487-115)

NIIN: 01-311-5948
In stock
NSN: 5331-01-311-5948
FSC Code: 5331
MPN: 2487115

5331-01-392-8394 (022-VITON)

NIIN: 01-392-8394
In stock
NSN: 5331-01-392-8394
FSC Code: 5331
MPN: 022VITON

5331-99-758-4168 (JMP/STD/5021.3)

NIIN: 99-758-4168
In stock
NSN: 5331-99-758-4168
FSC Code: 5331
MPN: JMPSTD50213

5331-01-485-7871 (0230-300-056)

NIIN: 01-485-7871
In stock
NSN: 5331-01-485-7871
FSC Code: 5331
MPN: 0230300056

5331-01-474-3675 (0230-401-050)

NIIN: 01-474-3675
In stock
NSN: 5331-01-474-3675
FSC Code: 5331
MPN: 0230401050

5331-01-474-6000 (0230-401-100)

NIIN: 01-474-6000
In stock
NSN: 5331-01-474-6000
FSC Code: 5331
MPN: 0230401100

5331-01-495-3069 (0-2-3-2)

NIIN: 01-495-3069
In stock
NSN: 5331-01-495-3069
FSC Code: 5331
MPN: 0232

5331-01-567-0808 (02-3200-52)

NIIN: 01-567-0808
In stock
NSN: 5331-01-567-0808
FSC Code: 5331
MPN: 02320052

5331-01-478-6522 (03Y61TM-0232)

NIIN: 01-478-6522
In stock
NSN: 5331-01-478-6522
FSC Code: 5331
MPN: 03Y61TM0232

5331-00-584-1895 (249-52037)

NIIN: 00-584-1895
In stock
NSN: 5331-00-584-1895
FSC Code: 5331
MPN: 24952037

5331-01-492-8394 (023-517)

NIIN: 01-492-8394
In stock
NSN: 5331-01-492-8394
FSC Code: 5331
MPN: 023517

5331-14-424-8223 (JTO023.6X3.15-24B7)

NIIN: 14-424-8223
In stock
NSN: 5331-14-424-8223
FSC Code: 5331
MPN: JTO0236X31524B7

5331-01-548-5652 (023750-089)

NIIN: 01-548-5652
In stock
NSN: 5331-01-548-5652
FSC Code: 5331
MPN: 023750089

5331-01-482-3009 (023750-029)

NIIN: 01-482-3009
In stock
NSN: 5331-01-482-3009
FSC Code: 5331
MPN: 023750029

5331-12-148-9318 (23176-271000.02.0)

NIIN: 12-148-9318
In stock
NSN: 5331-12-148-9318
FSC Code: 5331
MPN: 23176271000020

5331-01-538-1152 (023BUNA70)

NIIN: 01-538-1152
In stock
NSN: 5331-01-538-1152
FSC Code: 5331
MPN: 023BUNA70

5331-01-321-2049 (2498-00-257-12)

NIIN: 01-321-2049
In stock
NSN: 5331-01-321-2049
FSC Code: 5331
MPN: 24980025712

5331-01-322-5991 (2498-00-259)

NIIN: 01-322-5991
In stock
NSN: 5331-01-322-5991
FSC Code: 5331
MPN: 249800259

5331-01-322-8641 (2498-00-259)

NIIN: 01-322-8641
In stock
NSN: 5331-01-322-8641
FSC Code: 5331
MPN: 249800259

5331-01-322-8640 (2498-00-259)

NIIN: 01-322-8640
In stock
NSN: 5331-01-322-8640
FSC Code: 5331
MPN: 249800259

5331-01-322-5990 (2498-00-259)

NIIN: 01-322-5990
In stock
NSN: 5331-01-322-5990
FSC Code: 5331
MPN: 249800259

5331-01-452-0880 (023-N)

NIIN: 01-452-0880
In stock
NSN: 5331-01-452-0880
FSC Code: 5331
MPN: 023N

5331-01-322-8642 (2498-00-259)

NIIN: 01-322-8642
In stock
NSN: 5331-01-322-8642
FSC Code: 5331
MPN: 249800259

5331-01-302-4608 (2498-00-259)

NIIN: 01-302-4608
In stock
NSN: 5331-01-302-4608
FSC Code: 5331
MPN: 249800259

5331-01-303-8560 (2498-00-300-A-III)

NIIN: 01-303-8560
In stock
NSN: 5331-01-303-8560
FSC Code: 5331
MPN: 249800300AIII

5331-01-319-2994 (2498408-001)

NIIN: 01-319-2994
In stock
NSN: 5331-01-319-2994
FSC Code: 5331
MPN: 2498408001

5331-14-285-3801 (02460D6000A21B6)

NIIN: 14-285-3801
In stock
NSN: 5331-14-285-3801
FSC Code: 5331
MPN: 02460D6000A21B6