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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.

5331-12-315-0401 ((241)A396300120449)

NIIN: 12-315-0401
In stock
NSN: 5331-12-315-0401
FSC Code: 5331
MPN: 241A396300120449

5331-12-146-1859 ((241)A396300120823)

NIIN: 12-146-1859
In stock
NSN: 5331-12-146-1859
FSC Code: 5331
MPN: 241A396300120823

5331-12-148-4086 ((241)A39630-117626)

NIIN: 12-148-4086
In stock
NSN: 5331-12-148-4086
FSC Code: 5331
MPN: 241A39630117626

5331-12-122-4231 (E-S000C0018-12110-25)

NIIN: 12-122-4231
In stock
NSN: 5331-12-122-4231
FSC Code: 5331
MPN: ES000C00181211025

5331-12-122-3432 ((241)A42499932936)

NIIN: 12-122-3432
In stock
NSN: 5331-12-122-3432
FSC Code: 5331
MPN: 241A42499932936

5331-12-198-4612 (34X5ZFN744FPM-70-10)

NIIN: 12-198-4612
In stock
NSN: 5331-12-198-4612
FSC Code: 5331
MPN: 34X5ZFN744FPM7010

5331-12-144-4609 ((241)A39630-30154)

NIIN: 12-144-4609
In stock
NSN: 5331-12-144-4609
FSC Code: 5331
MPN: 241A3963030154

5331-12-146-4109 ((241)A424960167672)

NIIN: 12-146-4109
In stock
NSN: 5331-12-146-4109
FSC Code: 5331
MPN: 241A424960167672

5331-12-165-7720 ((241)A396300120730)

NIIN: 12-165-7720
In stock
NSN: 5331-12-165-7720
FSC Code: 5331
MPN: 241A396300120730

5331-12-333-6838 ((241)A42498196041)

NIIN: 12-333-6838
In stock
NSN: 5331-12-333-6838
FSC Code: 5331
MPN: 241A42498196041

5331-00-484-1788 (22550-220)

NIIN: 00-484-1788
In stock
NSN: 5331-00-484-1788
FSC Code: 5331
MPN: 22550220

5331-99-713-6165 (BSISO3601-1SIZE010)

NIIN: 99-713-6165
In stock
NSN: 5331-99-713-6165
FSC Code: 5331
MPN: BSISO36011SIZE010

5331-00-896-3409 (22550-214)

NIIN: 00-896-3409
In stock
NSN: 5331-00-896-3409
FSC Code: 5331
MPN: 22550214

5331-12-339-3425 ((241)A42498195972)

NIIN: 12-339-3425
In stock
NSN: 5331-12-339-3425
FSC Code: 5331
MPN: 241A42498195972

5331-01-254-7295 (22550-348)

NIIN: 01-254-7295
In stock
NSN: 5331-01-254-7295
FSC Code: 5331
MPN: 22550348

5331-00-404-8134 (22550-222)

NIIN: 00-404-8134
In stock
NSN: 5331-00-404-8134
FSC Code: 5331
MPN: 22550222

5331-15-162-3294 ((241)A9840D3114442A)

NIIN: 15-162-3294
In stock
NSN: 5331-15-162-3294
FSC Code: 5331
MPN: 241A9840D3114442A

5331-99-713-6164 ((241)AE095RTC4826)

NIIN: 99-713-6164
In stock
NSN: 5331-99-713-6164
FSC Code: 5331
MPN: 241AE095RTC4826

5331-12-315-5122 ((7001)5330123155122)

NIIN: 12-315-5122
In stock
NSN: 5331-12-315-5122
FSC Code: 5331
MPN: 70015330123155122

5331-01-298-8124 (22550-213)

NIIN: 01-298-8124
In stock
NSN: 5331-01-298-8124
FSC Code: 5331
MPN: 22550213

5331-15-163-3096 ((241)AD751D3114476A)

NIIN: 15-163-3096
In stock
NSN: 5331-15-163-3096
FSC Code: 5331
MPN: 241AD751D3114476A

5331-21-912-4273 (0.2100X27.25)

NIIN: 21-912-4273
In stock
NSN: 5331-21-912-4273
FSC Code: 5331
MPN: 02100X2725

5331-01-415-9617 (0.146X0.045-EP70)

NIIN: 01-415-9617
In stock
NSN: 5331-01-415-9617
FSC Code: 5331
MPN: 0146X0045EP70

5331-00-357-4382 (22558-11)

NIIN: 00-357-4382
In stock
NSN: 5331-00-357-4382
FSC Code: 5331
MPN: 2255811

5331-12-315-5134 ((7001)5330123155134)

NIIN: 12-315-5134
In stock
NSN: 5331-12-315-5134
FSC Code: 5331
MPN: 70015330123155134

5331-01-039-0448 (22558-27)

NIIN: 01-039-0448
In stock
NSN: 5331-01-039-0448
FSC Code: 5331
MPN: 2255827

5331-00-060-9707 (22558-14)

NIIN: 00-060-9707
In stock
NSN: 5331-00-060-9707
FSC Code: 5331
MPN: 2255814

5331-01-464-2490 (0.276X0.047)

NIIN: 01-464-2490
In stock
NSN: 5331-01-464-2490
FSC Code: 5331
MPN: 0276X0047

5331-01-553-4115 (0.259ID)

NIIN: 01-553-4115
In stock
NSN: 5331-01-553-4115
FSC Code: 5331
MPN: 0259ID

5331-01-361-4785 (0.295X0.03970SL)

NIIN: 01-361-4785
In stock
NSN: 5331-01-361-4785
FSC Code: 5331
MPN: 0295X003970SL

5331-01-456-6841 (0.302IDX0.028CS-70BN)

NIIN: 01-456-6841
In stock
NSN: 5331-01-456-6841
FSC Code: 5331
MPN: 0302IDX0028CS70BN

5331-01-292-7125 (22558-9)

NIIN: 01-292-7125
In stock
NSN: 5331-01-292-7125
FSC Code: 5331
MPN: 225589

5331-01-292-7126 (22558-7)

NIIN: 01-292-7126
In stock
NSN: 5331-01-292-7126
FSC Code: 5331
MPN: 225587

5331-01-385-1063 (0.447X0.052)

NIIN: 01-385-1063
In stock
NSN: 5331-01-385-1063
FSC Code: 5331
MPN: 0447X0052

5331-01-481-5875 (0.748X0.039)

NIIN: 01-481-5875
In stock
NSN: 5331-01-481-5875
FSC Code: 5331
MPN: 0748X0039

5331-01-105-8886 (2-256)

NIIN: 01-105-8886
In stock
NSN: 5331-01-105-8886
FSC Code: 5331
MPN: 2256

5331-00-989-6002 (2-255S604-70)

NIIN: 00-989-6002
In stock
NSN: 5331-00-989-6002
FSC Code: 5331
MPN: 2255S60470

5331-00-954-2740 (2-256)

NIIN: 00-954-2740
In stock
NSN: 5331-00-954-2740
FSC Code: 5331
MPN: 2256

5331-00-168-5470 (22566-117)

NIIN: 00-168-5470
In stock
NSN: 5331-00-168-5470
FSC Code: 5331
MPN: 22566117

5331-01-046-4617 (22566-18)

NIIN: 01-046-4617
In stock
NSN: 5331-01-046-4617
FSC Code: 5331
MPN: 2256618

5331-01-101-2516 (22566-17)

NIIN: 01-101-2516
In stock
NSN: 5331-01-101-2516
FSC Code: 5331
MPN: 2256617

5331-00-684-2714 (22566-10)

NIIN: 00-684-2714
In stock
NSN: 5331-00-684-2714
FSC Code: 5331
MPN: 2256610

5331-01-438-6829 (7D3-05609)

NIIN: 01-438-6829
In stock
NSN: 5331-01-438-6829
FSC Code: 5331
MPN: 7D305609

5331-12-188-1130 (OR124X3-83FKM/592)

NIIN: 12-188-1130
In stock
NSN: 5331-12-188-1130
FSC Code: 5331
MPN: OR124X383FKM592

5331-12-339-4699 (OR78X3-83FKM/592)

NIIN: 12-339-4699
In stock
NSN: 5331-12-339-4699
FSC Code: 5331
MPN: OR78X383FKM592

5331-12-143-0166 (VN3014-100X3-NBR70)

NIIN: 12-143-0166
In stock
NSN: 5331-12-143-0166
FSC Code: 5331
MPN: VN3014100X3NBR70

5331-01-101-2035 (22566-21)

NIIN: 01-101-2035
In stock
NSN: 5331-01-101-2035
FSC Code: 5331
MPN: 2256621

5331-12-135-5242 (OR65X3-72NBR/872)

NIIN: 12-135-5242
In stock
NSN: 5331-12-135-5242
FSC Code: 5331
MPN: OR65X372NBR872