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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.

5331-00-135-7679 (953519-121)

NIIN: 00-135-7679
In stock
NSN: 5331-00-135-7679
FSC Code: 5331
MPN: 953519121

5331-00-415-6687 (953516-26)

NIIN: 00-415-6687
In stock
NSN: 5331-00-415-6687
FSC Code: 5331
MPN: 95351626

5331-00-415-6693 (953516-28)

NIIN: 00-415-6693
In stock
NSN: 5331-00-415-6693
FSC Code: 5331
MPN: 95351628

5331-01-045-5603 (953515-5)

NIIN: 01-045-5603
In stock
NSN: 5331-01-045-5603
FSC Code: 5331
MPN: 9535155

5331-00-443-6910 (953516-22)

NIIN: 00-443-6910
In stock
NSN: 5331-00-443-6910
FSC Code: 5331
MPN: 95351622

5331-00-941-6633 (953506-11)

NIIN: 00-941-6633
In stock
NSN: 5331-00-941-6633
FSC Code: 5331
MPN: 95350611

5331-00-949-0151 (953515-04)

NIIN: 00-949-0151
In stock
NSN: 5331-00-949-0151
FSC Code: 5331
MPN: 95351504

5331-00-059-9827 (953500-16)

NIIN: 00-059-9827
In stock
NSN: 5331-00-059-9827
FSC Code: 5331
MPN: 95350016

5331-00-488-5310 (952808-9)

NIIN: 00-488-5310
In stock
NSN: 5331-00-488-5310
FSC Code: 5331
MPN: 9528089

5331-00-407-4100 (952808-7)

NIIN: 00-407-4100
In stock
NSN: 5331-00-407-4100
FSC Code: 5331
MPN: 9528087

5331-00-130-9520 (952808-1)

NIIN: 00-130-9520
In stock
NSN: 5331-00-130-9520
FSC Code: 5331
MPN: 9528081

5331-00-181-0018 (952808-6)

NIIN: 00-181-0018
In stock
NSN: 5331-00-181-0018
FSC Code: 5331
MPN: 9528086

5331-00-182-3032 (952550-4)

NIIN: 00-182-3032
In stock
NSN: 5331-00-182-3032
FSC Code: 5331
MPN: 9525504

5331-01-185-7230 (952240-28)

NIIN: 01-185-7230
In stock
NSN: 5331-01-185-7230
FSC Code: 5331
MPN: 95224028

5331-01-129-0636 (952240-24)

NIIN: 01-129-0636
In stock
NSN: 5331-01-129-0636
FSC Code: 5331
MPN: 95224024

5331-01-185-7229 (952240-27)

NIIN: 01-185-7229
In stock
NSN: 5331-01-185-7229
FSC Code: 5331
MPN: 95224027

5331-01-130-3282 (952240-23)

NIIN: 01-130-3282
In stock
NSN: 5331-01-130-3282
FSC Code: 5331
MPN: 95224023

5331-01-007-1624 (952240-14)

NIIN: 01-007-1624
In stock
NSN: 5331-01-007-1624
FSC Code: 5331
MPN: 95224014

5331-01-098-3827 (9521-25B)

NIIN: 01-098-3827
In stock
NSN: 5331-01-098-3827
FSC Code: 5331
MPN: 952125B

5331-01-215-5141 (952-0013-410)

NIIN: 01-215-5141
In stock
NSN: 5331-01-215-5141
FSC Code: 5331
MPN: 9520013410

5331-01-216-5600 (952-0210-410)

NIIN: 01-216-5600
In stock
NSN: 5331-01-216-5600
FSC Code: 5331
MPN: 9520210410

5331-01-419-4342 (505001-000)

NIIN: 01-419-4342
In stock
NSN: 5331-01-419-4342
FSC Code: 5331
MPN: 505001000

5331-01-421-8349 (504P994-04)

NIIN: 01-421-8349
In stock
NSN: 5331-01-421-8349
FSC Code: 5331
MPN: 504P99404

5331-00-966-7772 (9513-031-2)

NIIN: 00-966-7772
In stock
NSN: 5331-00-966-7772
FSC Code: 5331
MPN: 95130312

5331-00-901-6955 (9513-012-4)

NIIN: 00-901-6955
In stock
NSN: 5331-00-901-6955
FSC Code: 5331
MPN: 95130124

5331-00-420-1450 (9513-004-4)

NIIN: 00-420-1450
In stock
NSN: 5331-00-420-1450
FSC Code: 5331
MPN: 95130044

5331-01-175-9225 (9510M51P02)

NIIN: 01-175-9225
In stock
NSN: 5331-01-175-9225
FSC Code: 5331
MPN: 9510M51P02

5331-01-213-7001 (9510M51P03)

NIIN: 01-213-7001
In stock
NSN: 5331-01-213-7001
FSC Code: 5331
MPN: 9510M51P03

5331-00-804-3832 (951054J)

NIIN: 00-804-3832
In stock
NSN: 5331-00-804-3832
FSC Code: 5331
MPN: 951054J

5331-01-175-9226 (9510M51P01)

NIIN: 01-175-9226
In stock
NSN: 5331-01-175-9226
FSC Code: 5331
MPN: 9510M51P01

5331-00-095-6755 (951054E)

NIIN: 00-095-6755
In stock
NSN: 5331-00-095-6755
FSC Code: 5331
MPN: 951054E

5331-01-412-9734 (5045R)

NIIN: 01-412-9734
In stock
NSN: 5331-01-412-9734
FSC Code: 5331
MPN: 5045R

5331-01-229-1980 (9510.674.6-6)

NIIN: 01-229-1980
In stock
NSN: 5331-01-229-1980
FSC Code: 5331
MPN: 951067466

5331-00-641-3293 (95075-114)

NIIN: 00-641-3293
In stock
NSN: 5331-00-641-3293
FSC Code: 5331
MPN: 95075114

5331-01-144-0954 (95040-32)

NIIN: 01-144-0954
In stock
NSN: 5331-01-144-0954
FSC Code: 5331
MPN: 9504032

5331-01-211-0481 (95040-4)

NIIN: 01-211-0481
In stock
NSN: 5331-01-211-0481
FSC Code: 5331
MPN: 950404

5331-00-818-2051 (95040-5)

NIIN: 00-818-2051
In stock
NSN: 5331-00-818-2051
FSC Code: 5331
MPN: 950405

5331-00-912-5267 (950-22)

NIIN: 00-912-5267
In stock
NSN: 5331-00-912-5267
FSC Code: 5331
MPN: 95022

5331-00-780-8991 (95000-218)

NIIN: 00-780-8991
In stock
NSN: 5331-00-780-8991
FSC Code: 5331
MPN: 95000218

5331-00-194-5793 (95000-26)

NIIN: 00-194-5793
In stock
NSN: 5331-00-194-5793
FSC Code: 5331
MPN: 9500026

5331-00-436-1936 (95000-212)

NIIN: 00-436-1936
In stock
NSN: 5331-00-436-1936
FSC Code: 5331
MPN: 95000212

5331-01-096-6878 (95000-010)

NIIN: 01-096-6878
In stock
NSN: 5331-01-096-6878
FSC Code: 5331
MPN: 95000010

5331-01-028-8985 (95000-021)

NIIN: 01-028-8985
In stock
NSN: 5331-01-028-8985
FSC Code: 5331
MPN: 95000021

5331-01-043-7759 (95000-006)

NIIN: 01-043-7759
In stock
NSN: 5331-01-043-7759
FSC Code: 5331
MPN: 95000006

5331-00-136-5675 (95000-014)

NIIN: 00-136-5675
In stock
NSN: 5331-00-136-5675
FSC Code: 5331
MPN: 95000014

5331-01-469-2406 (5-035-N674-70)

NIIN: 01-469-2406
In stock
NSN: 5331-01-469-2406
FSC Code: 5331
MPN: 5035N67470

5331-01-205-9775 (949187-9)

NIIN: 01-205-9775
In stock
NSN: 5331-01-205-9775
FSC Code: 5331
MPN: 9491879

5331-01-324-6719 (949140-3420)

NIIN: 01-324-6719
In stock
NSN: 5331-01-324-6719
FSC Code: 5331
MPN: 9491403420