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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.

5331-01-071-6947 (52-11045-130)

NIIN: 01-071-6947
In stock
NSN: 5331-01-071-6947
FSC Code: 5331
MPN: 5211045130

5331-00-941-3029 (52-105-093-006)

NIIN: 00-941-3029
In stock
NSN: 5331-00-941-3029
FSC Code: 5331
MPN: 52105093006

5331-01-564-1292 (19318-ZY6-000)

NIIN: 01-564-1292
In stock
NSN: 5331-01-564-1292
FSC Code: 5331
MPN: 19318ZY6000

5331-00-132-7835 (52-10241-8)

NIIN: 00-132-7835
In stock
NSN: 5331-00-132-7835
FSC Code: 5331
MPN: 52102418

5331-01-064-0507 (52-10250-127)

NIIN: 01-064-0507
In stock
NSN: 5331-01-064-0507
FSC Code: 5331
MPN: 5210250127

5331-00-132-7836 (52-10241-24)

NIIN: 00-132-7836
In stock
NSN: 5331-00-132-7836
FSC Code: 5331
MPN: 521024124

5331-00-989-0886 (52-10250-013)

NIIN: 00-989-0886
In stock
NSN: 5331-00-989-0886
FSC Code: 5331
MPN: 5210250013

5331-01-063-8530 (52-10250-018)

NIIN: 01-063-8530
In stock
NSN: 5331-01-063-8530
FSC Code: 5331
MPN: 5210250018

5331-00-989-0885 (52-10250-010)

NIIN: 00-989-0885
In stock
NSN: 5331-00-989-0885
FSC Code: 5331
MPN: 5210250010

5331-00-132-1506 (52-10241-4)

NIIN: 00-132-1506
In stock
NSN: 5331-00-132-1506
FSC Code: 5331
MPN: 52102414

5331-00-133-2035 (52-10240-013)

NIIN: 00-133-2035
In stock
NSN: 5331-00-133-2035
FSC Code: 5331
MPN: 5210240013

5331-01-428-5957 (P701-151-77)

NIIN: 01-428-5957
In stock
NSN: 5331-01-428-5957
FSC Code: 5331
MPN: P70115177

5331-01-078-5119 (5-20-N674-70)

NIIN: 01-078-5119
In stock
NSN: 5331-01-078-5119
FSC Code: 5331
MPN: 520N67470

5331-01-099-7287 (5-209S604-70)

NIIN: 01-099-7287
In stock
NSN: 5331-01-099-7287
FSC Code: 5331
MPN: 5209S60470

5331-00-964-0356 (520-9-0395-31)

NIIN: 00-964-0356
In stock
NSN: 5331-00-964-0356
FSC Code: 5331
MPN: 5209039531

5331-00-916-6646 (520-9-0395-19)

NIIN: 00-916-6646
In stock
NSN: 5331-00-916-6646
FSC Code: 5331
MPN: 5209039519

5331-01-246-9396 (52079-22)

NIIN: 01-246-9396
In stock
NSN: 5331-01-246-9396
FSC Code: 5331
MPN: 5207922

5331-00-057-3691 (520-9-0395-27)

NIIN: 00-057-3691
In stock
NSN: 5331-00-057-3691
FSC Code: 5331
MPN: 5209039527

5331-00-045-7411 (520-9-0395-67)

NIIN: 00-045-7411
In stock
NSN: 5331-00-045-7411
FSC Code: 5331
MPN: 5209039567

5331-01-246-9398 (52079-19)

NIIN: 01-246-9398
In stock
NSN: 5331-01-246-9398
FSC Code: 5331
MPN: 5207919

5331-01-246-9399 (52079-21)

NIIN: 01-246-9399
In stock
NSN: 5331-01-246-9399
FSC Code: 5331
MPN: 5207921

5331-01-246-9395 (52079-18)

NIIN: 01-246-9395
In stock
NSN: 5331-01-246-9395
FSC Code: 5331
MPN: 5207918

5331-01-290-9591 (5-200162-K-001)

NIIN: 01-290-9591
In stock
NSN: 5331-01-290-9591
FSC Code: 5331
MPN: 5200162K001

5331-01-533-7418 (19202-9683-0)

NIIN: 01-533-7418
In stock
NSN: 5331-01-533-7418
FSC Code: 5331
MPN: 1920296830

5331-01-026-3794 (5200-021227)

NIIN: 01-026-3794
In stock
NSN: 5331-01-026-3794
FSC Code: 5331
MPN: 5200021227

5331-01-026-3792 (5200-022177)

NIIN: 01-026-3792
In stock
NSN: 5331-01-026-3792
FSC Code: 5331
MPN: 5200022177

5331-01-171-1317 (5200-021229)

NIIN: 01-171-1317
In stock
NSN: 5331-01-171-1317
FSC Code: 5331
MPN: 5200021229

5331-01-026-3795 (5200-029047)

NIIN: 01-026-3795
In stock
NSN: 5331-01-026-3795
FSC Code: 5331
MPN: 5200029047

5331-01-236-9189 (5200-029089)

NIIN: 01-236-9189
In stock
NSN: 5331-01-236-9189
FSC Code: 5331
MPN: 5200029089

5331-01-298-3053 (5200-029029)

NIIN: 01-298-3053
In stock
NSN: 5331-01-298-3053
FSC Code: 5331
MPN: 5200029029

5331-00-421-4941 (5200-001227)

NIIN: 00-421-4941
In stock
NSN: 5331-00-421-4941
FSC Code: 5331
MPN: 5200001227

5331-01-298-4727 (5200-020267)

NIIN: 01-298-4727
In stock
NSN: 5331-01-298-4727
FSC Code: 5331
MPN: 5200020267

5331-01-102-0918 (5200-020107)

NIIN: 01-102-0918
In stock
NSN: 5331-01-102-0918
FSC Code: 5331
MPN: 5200020107

5331-01-023-0049 (5200-021209)

NIIN: 01-023-0049
In stock
NSN: 5331-01-023-0049
FSC Code: 5331
MPN: 5200021209

5331-01-171-1318 (5200-021139)

NIIN: 01-171-1318
In stock
NSN: 5331-01-171-1318
FSC Code: 5331
MPN: 5200021139

5331-00-009-7053 (5200-001209)

NIIN: 00-009-7053
In stock
NSN: 5331-00-009-7053
FSC Code: 5331
MPN: 5200001209

5331-00-393-4056 (5200-002107)

NIIN: 00-393-4056
In stock
NSN: 5331-00-393-4056
FSC Code: 5331
MPN: 5200002107

5331-00-009-7052 (5200-001167)

NIIN: 00-009-7052
In stock
NSN: 5331-00-009-7052
FSC Code: 5331
MPN: 5200001167

5331-01-120-3840 (5200-001137)

NIIN: 01-120-3840
In stock
NSN: 5331-01-120-3840
FSC Code: 5331
MPN: 5200001137

5331-00-393-4055 (5200-000087)

NIIN: 00-393-4055
In stock
NSN: 5331-00-393-4055
FSC Code: 5331
MPN: 5200000087

5331-01-371-4960 (1919L002)

NIIN: 01-371-4960
In stock
NSN: 5331-01-371-4960
FSC Code: 5331
MPN: 1919L002

5331-01-422-3878 (1919L001)

NIIN: 01-422-3878
In stock
NSN: 5331-01-422-3878
FSC Code: 5331
MPN: 1919L001

5331-01-387-7495 (1918RD24620B9)

NIIN: 01-387-7495
In stock
NSN: 5331-01-387-7495
FSC Code: 5331
MPN: 1918RD24620B9

5331-00-204-5305 (51G4A601)

NIIN: 00-204-5305
In stock
NSN: 5331-00-204-5305
FSC Code: 5331
MPN: 51G4A601

5331-00-304-9015 (519WA39PS7)

NIIN: 00-304-9015
In stock
NSN: 5331-00-304-9015
FSC Code: 5331
MPN: 519WA39PS7

5331-01-137-6906 (519550-01)

NIIN: 01-137-6906
In stock
NSN: 5331-01-137-6906
FSC Code: 5331
MPN: 51955001

5331-01-478-0076 (191284C)

NIIN: 01-478-0076
In stock
NSN: 5331-01-478-0076
FSC Code: 5331
MPN: 191284C

5331-01-205-9214 (5-194N299-50)

NIIN: 01-205-9214
In stock
NSN: 5331-01-205-9214
FSC Code: 5331
MPN: 5194N29950