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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.

5331-01-518-5228 (BOA/8020400219)

NIIN: 01-518-5228
In stock
NSN: 5331-01-518-5228
FSC Code: 5331
MPN: BOA8020400219

5331-01-515-4192 (BO2252)

NIIN: 01-515-4192
In stock
NSN: 5331-01-515-4192
FSC Code: 5331
MPN: BO2252

5331-99-807-5951 (BS1806-015)

NIIN: 99-807-5951
In stock
NSN: 5331-99-807-5951
FSC Code: 5331
MPN: BS1806015

5331-01-515-4190 (BO2279)

NIIN: 01-515-4190
In stock
NSN: 5331-01-515-4190
FSC Code: 5331
MPN: BO2279

5331-99-745-8494 (BS1806-128)

NIIN: 99-745-8494
In stock
NSN: 5331-99-745-8494
FSC Code: 5331
MPN: BS1806128

5331-00-168-5896 (R81350)

NIIN: 00-168-5896
In stock
NSN: 5331-00-168-5896
FSC Code: 5331
MPN: R81350

5331-01-317-5225 (R79915)

NIIN: 01-317-5225
In stock
NSN: 5331-01-317-5225
FSC Code: 5331
MPN: R79915

5331-01-327-0947 (R78975)

NIIN: 01-327-0947
In stock
NSN: 5331-01-327-0947
FSC Code: 5331
MPN: R78975

5331-01-252-5105 (R77052)

NIIN: 01-252-5105
In stock
NSN: 5331-01-252-5105
FSC Code: 5331
MPN: R77052

5331-01-188-9432 (R76801)

NIIN: 01-188-9432
In stock
NSN: 5331-01-188-9432
FSC Code: 5331
MPN: R76801

5331-01-312-3750 (R77551)

NIIN: 01-312-3750
In stock
NSN: 5331-01-312-3750
FSC Code: 5331
MPN: R77551

5331-01-257-4319 (R76578)

NIIN: 01-257-4319
In stock
NSN: 5331-01-257-4319
FSC Code: 5331
MPN: R76578

5331-01-307-9411 (R75892)

NIIN: 01-307-9411
In stock
NSN: 5331-01-307-9411
FSC Code: 5331
MPN: R75892

5331-01-478-6951 (SG-1.5-792-B1-0)

NIIN: 01-478-6951
In stock
NSN: 5331-01-478-6951
FSC Code: 5331
MPN: SG15792B10

5331-01-478-6946 (CG-1.5-792-B1-0)

NIIN: 01-478-6946
In stock
NSN: 5331-01-478-6946
FSC Code: 5331
MPN: CG15792B10

5331-01-236-1743 (R74354)

NIIN: 01-236-1743
In stock
NSN: 5331-01-236-1743
FSC Code: 5331
MPN: R74354

5331-01-478-6940 (MHG-1.5-792-B1-0)

NIIN: 01-478-6940
In stock
NSN: 5331-01-478-6940
FSC Code: 5331
MPN: MHG15792B10

5331-01-333-2685 (R73821)

NIIN: 01-333-2685
In stock
NSN: 5331-01-333-2685
FSC Code: 5331
MPN: R73821

5331-01-327-3373 (R7168)

NIIN: 01-327-3373
In stock
NSN: 5331-01-327-3373
FSC Code: 5331
MPN: R7168

5331-01-298-4729 (R70050X-2154)

NIIN: 01-298-4729
In stock
NSN: 5331-01-298-4729
FSC Code: 5331
MPN: R70050X2154

5331-00-903-1059 (R67500-9)

NIIN: 00-903-1059
In stock
NSN: 5331-00-903-1059
FSC Code: 5331
MPN: R675009

5331-00-178-7979 (R67500-30)

NIIN: 00-178-7979
In stock
NSN: 5331-00-178-7979
FSC Code: 5331
MPN: R6750030

5331-01-100-5158 (R65541)

NIIN: 01-100-5158
In stock
NSN: 5331-01-100-5158
FSC Code: 5331
MPN: R65541

5331-01-206-3204 (R64374)

NIIN: 01-206-3204
In stock
NSN: 5331-01-206-3204
FSC Code: 5331
MPN: R64374

5331-01-311-5972 (R61871)

NIIN: 01-311-5972
In stock
NSN: 5331-01-311-5972
FSC Code: 5331
MPN: R61871

5331-00-464-6140 (R613)

NIIN: 00-464-6140
In stock
NSN: 5331-00-464-6140
FSC Code: 5331
MPN: R613

5331-01-135-7217 (R60332)

NIIN: 01-135-7217
In stock
NSN: 5331-01-135-7217
FSC Code: 5331
MPN: R60332

5331-00-166-6344 (R600-152)

NIIN: 00-166-6344
In stock
NSN: 5331-00-166-6344
FSC Code: 5331
MPN: R600152

5331-01-289-9758 (R5756)

NIIN: 01-289-9758
In stock
NSN: 5331-01-289-9758
FSC Code: 5331
MPN: R5756

5331-01-160-1876 (R56396)

NIIN: 01-160-1876
In stock
NSN: 5331-01-160-1876
FSC Code: 5331
MPN: R56396

5331-01-190-1893 (R56193)

NIIN: 01-190-1893
In stock
NSN: 5331-01-190-1893
FSC Code: 5331
MPN: R56193

5331-01-190-1892 (R56192)

NIIN: 01-190-1892
In stock
NSN: 5331-01-190-1892
FSC Code: 5331
MPN: R56192

5331-01-197-3211 (R55434)

NIIN: 01-197-3211
In stock
NSN: 5331-01-197-3211
FSC Code: 5331
MPN: R55434

5331-01-277-6141 (R55453)

NIIN: 01-277-6141
In stock
NSN: 5331-01-277-6141
FSC Code: 5331
MPN: R55453

5331-01-312-7163 (R54326)

NIIN: 01-312-7163
In stock
NSN: 5331-01-312-7163
FSC Code: 5331
MPN: R54326

5331-01-197-3579 (R52387)

NIIN: 01-197-3579
In stock
NSN: 5331-01-197-3579
FSC Code: 5331
MPN: R52387

5331-01-324-8865 (R51603)

NIIN: 01-324-8865
In stock
NSN: 5331-01-324-8865
FSC Code: 5331
MPN: R51603

5331-00-872-8018 (R513-214)

NIIN: 00-872-8018
In stock
NSN: 5331-00-872-8018
FSC Code: 5331
MPN: R513214

5331-00-860-2389 (R513-111)

NIIN: 00-860-2389
In stock
NSN: 5331-00-860-2389
FSC Code: 5331
MPN: R513111

5331-00-935-6050 (R513-14)

NIIN: 00-935-6050
In stock
NSN: 5331-00-935-6050
FSC Code: 5331
MPN: R51314

5331-00-954-6241 (R513-112)

NIIN: 00-954-6241
In stock
NSN: 5331-00-954-6241
FSC Code: 5331
MPN: R513112

5331-00-274-7862 (R512-10)

NIIN: 00-274-7862
In stock
NSN: 5331-00-274-7862
FSC Code: 5331
MPN: R51210

5331-00-274-7866 (R512-4)

NIIN: 00-274-7866
In stock
NSN: 5331-00-274-7866
FSC Code: 5331
MPN: R5124

5331-00-277-8387 (R512-8)

NIIN: 00-277-8387
In stock
NSN: 5331-00-277-8387
FSC Code: 5331
MPN: R5128

5331-01-196-2476 (R50922)

NIIN: 01-196-2476
In stock
NSN: 5331-01-196-2476
FSC Code: 5331
MPN: R50922

5331-01-197-3578 (R50919)

NIIN: 01-197-3578
In stock
NSN: 5331-01-197-3578
FSC Code: 5331
MPN: R50919

5331-01-197-3210 (R50915)

NIIN: 01-197-3210
In stock
NSN: 5331-01-197-3210
FSC Code: 5331
MPN: R50915

5331-01-196-2475 (R50913)

NIIN: 01-196-2475
In stock
NSN: 5331-01-196-2475
FSC Code: 5331
MPN: R50913