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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.

5331-01-425-3027 (0RS469B7)

NIIN: 01-425-3027
In stock
NSN: 5331-01-425-3027
FSC Code: 5331
MPN: 0RS469B7

5331-00-618-0286 (29229-1)

NIIN: 00-618-0286
In stock
NSN: 5331-00-618-0286
FSC Code: 5331
MPN: 292291

5331-01-442-8712 (HKB1000-242)

NIIN: 01-442-8712
In stock
NSN: 5331-01-442-8712
FSC Code: 5331
MPN: HKB1000242

5331-12-165-8617 (0R94X2-5-62NBR152)

NIIN: 12-165-8617
In stock
NSN: 5331-12-165-8617
FSC Code: 5331
MPN: 0R94X2562NBR152

5331-12-193-5677 (OR8X2-58VMQ/518)

NIIN: 12-193-5677
In stock
NSN: 5331-12-193-5677
FSC Code: 5331
MPN: OR8X258VMQ518

5331-12-161-9832 (0R66X5-33WS697)

NIIN: 12-161-9832
In stock
NSN: 5331-12-161-9832
FSC Code: 5331
MPN: 0R66X533WS697

5331-12-172-9958 (0R89-5X3-70NBR769)

NIIN: 12-172-9958
In stock
NSN: 5331-12-172-9958
FSC Code: 5331
MPN: 0R895X370NBR769

5331-12-168-7670 (OR66X5-72NBR/872)

NIIN: 12-168-7670
In stock
NSN: 5331-12-168-7670
FSC Code: 5331
MPN: OR66X572NBR872

5331-12-145-5758 (OR44.2X5.7-72NBR/872)

NIIN: 12-145-5758
In stock
NSN: 5331-12-145-5758
FSC Code: 5331
MPN: OR442X5772NBR872

5331-12-158-1118 (5800583-094800.014)

NIIN: 12-158-1118
In stock
NSN: 5331-12-158-1118
FSC Code: 5331
MPN: 5800583094800014

5331-12-173-3362 (0R60X2-5-70NBR769)

NIIN: 12-173-3362
In stock
NSN: 5331-12-173-3362
FSC Code: 5331
MPN: 0R60X2570NBR769

5331-12-173-3025 (0R31-5X1-2WN16-1-35)

NIIN: 12-173-3025
In stock
NSN: 5331-12-173-3025
FSC Code: 5331
MPN: 0R315X12WN16135

5331-99-429-2508 (7961-012-829-90)

NIIN: 99-429-2508
In stock
NSN: 5331-99-429-2508
FSC Code: 5331
MPN: 796101282990

5331-12-192-7220 (0R46-5X3-70NBR769)

NIIN: 12-192-7220
In stock
NSN: 5331-12-192-7220
FSC Code: 5331
MPN: 0R465X370NBR769

5331-12-177-4712 (OR50X3-70NBR/150)

NIIN: 12-177-4712
In stock
NSN: 5331-12-177-4712
FSC Code: 5331
MPN: OR50X370NBR150

5331-12-164-3690 (RDR30X2-5BM7-660-60NB70)

NIIN: 12-164-3690
In stock
NSN: 5331-12-164-3690
FSC Code: 5331
MPN: RDR30X25BM766060NB70

5331-12-181-7495 (OR50X2-60FVMQ/565)

NIIN: 12-181-7495
In stock
NSN: 5331-12-181-7495
FSC Code: 5331
MPN: OR50X260FVMQ565

5331-12-163-3206 (OR45X3-70NBR/812)

NIIN: 12-163-3206
In stock
NSN: 5331-12-163-3206
FSC Code: 5331
MPN: OR45X370NBR812

5331-12-158-8936 (OR44X6-72NBR/872)

NIIN: 12-158-8936
In stock
NSN: 5331-12-158-8936
FSC Code: 5331
MPN: OR44X672NBR872

5331-12-164-4524 (0R63-5X3-2-70NBR812)

NIIN: 12-164-4524
In stock
NSN: 5331-12-164-4524
FSC Code: 5331
MPN: 0R635X3270NBR812

5331-12-181-7447 (OR62X2-60FVMQ/565)

NIIN: 12-181-7447
In stock
NSN: 5331-12-181-7447
FSC Code: 5331
MPN: OR62X260FVMQ565

5331-12-159-7971 (0R32X3-5WS2871)

NIIN: 12-159-7971
In stock
NSN: 5331-12-159-7971
FSC Code: 5331
MPN: 0R32X35WS2871

5331-12-166-3676 (5801369-1295-000)

NIIN: 12-166-3676
In stock
NSN: 5331-12-166-3676
FSC Code: 5331
MPN: 58013691295000

5331-12-156-5207 (0R28X3-5-83FKM575)

NIIN: 12-156-5207
In stock
NSN: 5331-12-156-5207
FSC Code: 5331
MPN: 0R28X3583FKM575

5331-12-183-9482 (OR260X4-72NBR/872)

NIIN: 12-183-9482
In stock
NSN: 5331-12-183-9482
FSC Code: 5331
MPN: OR260X472NBR872

5331-12-178-1887 (F0524X3-5-72NBR-872)

NIIN: 12-178-1887
In stock
NSN: 5331-12-178-1887
FSC Code: 5331
MPN: F0524X3572NBR872

5331-12-190-7296 (4-88NBR/156)

NIIN: 12-190-7296
In stock
NSN: 5331-12-190-7296
FSC Code: 5331
MPN: 488NBR156

5331-12-149-9819 (OR172X4-72NBR/872)

NIIN: 12-149-9819
In stock
NSN: 5331-12-149-9819
FSC Code: 5331
MPN: OR172X472NBR872

5331-12-143-9838 (0R18-2X3-70NBR769)

NIIN: 12-143-9838
In stock
NSN: 5331-12-143-9838
FSC Code: 5331
MPN: 0R182X370NBR769

5331-12-149-9788 (OR250X3-72NBR/872)

NIIN: 12-149-9788
In stock
NSN: 5331-12-149-9788
FSC Code: 5331
MPN: OR250X372NBR872

5331-12-176-9662 (0R26-2X3-70NBR150)

NIIN: 12-176-9662
In stock
NSN: 5331-12-176-9662
FSC Code: 5331
MPN: 0R262X370NBR150

5331-12-171-2186 (0R25X2-88NBR/156)

NIIN: 12-171-2186
In stock
NSN: 5331-12-171-2186
FSC Code: 5331
MPN: 0R25X288NBR156

5331-12-148-9570 (23176-208590.08.0)

NIIN: 12-148-9570
In stock
NSN: 5331-12-148-9570
FSC Code: 5331
MPN: 23176208590080

5331-99-713-9621 (200-043-4470)

NIIN: 99-713-9621
In stock
NSN: 5331-99-713-9621
FSC Code: 5331
MPN: 2000434470

5331-12-172-8645 (OR18X4-70NBR/150)

NIIN: 12-172-8645
In stock
NSN: 5331-12-172-8645
FSC Code: 5331
MPN: OR18X470NBR150

5331-12-178-0030 (OR217X5-60FVMQ/565)

NIIN: 12-178-0030
In stock
NSN: 5331-12-178-0030
FSC Code: 5331
MPN: OR217X560FVMQ565

5331-99-716-2770 (ASCC17-27C-110)

NIIN: 99-716-2770
In stock
NSN: 5331-99-716-2770
FSC Code: 5331
MPN: ASCC1727C110

5331-12-177-8533 (OR22X1-72NBR/872)

NIIN: 12-177-8533
In stock
NSN: 5331-12-177-8533
FSC Code: 5331
MPN: OR22X172NBR872

5331-01-356-3128 (0R119)

NIIN: 01-356-3128
In stock
NSN: 5331-01-356-3128
FSC Code: 5331
MPN: 0R119

5331-12-176-2797 (OR22X2-70FKM/576)

NIIN: 12-176-2797
In stock
NSN: 5331-12-176-2797
FSC Code: 5331
MPN: OR22X270FKM576

5331-01-549-6283 (0R2006500)

NIIN: 01-549-6283
In stock
NSN: 5331-01-549-6283
FSC Code: 5331
MPN: 0R2006500

5331-99-713-6155 (200-034-4470)

NIIN: 99-713-6155
In stock
NSN: 5331-99-713-6155
FSC Code: 5331
MPN: 2000344470

5331-12-172-2586 (OR17X2-70FKM/576)

NIIN: 12-172-2586
In stock
NSN: 5331-12-172-2586
FSC Code: 5331
MPN: OR17X270FKM576

5331-99-713-6134 (BS1806-236NBRM70)

NIIN: 99-713-6134
In stock
NSN: 5331-99-713-6134
FSC Code: 5331
MPN: BS1806236NBRM70

5331-12-176-5515 (0R15X2-5-83FKM575)

NIIN: 12-176-5515
In stock
NSN: 5331-12-176-5515
FSC Code: 5331
MPN: 0R15X2583FKM575

5331-99-713-6133 (200-144-4470)

NIIN: 99-713-6133
In stock
NSN: 5331-99-713-6133
FSC Code: 5331
MPN: 2001444470

5331-12-151-4762 (OR130X4-72NBR/872)

NIIN: 12-151-4762
In stock
NSN: 5331-12-151-4762
FSC Code: 5331
MPN: OR130X472NBR872

5331-12-166-1836 (0R13-3X2-4-70NBR812)

NIIN: 12-166-1836
In stock
NSN: 5331-12-166-1836
FSC Code: 5331
MPN: 0R133X2470NBR812