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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.

5331-01-530-9774 (54-67-2028DD0)

NIIN: 01-530-9774
In stock
NSN: 5331-01-530-9774
FSC Code: 5331
MPN: 54672028DD0

5331-01-530-9770 (54-67-2009DD0)

NIIN: 01-530-9770
In stock
NSN: 5331-01-530-9770
FSC Code: 5331
MPN: 54672009DD0

5331-01-530-9776 (54-67-2025DD0)

NIIN: 01-530-9776
In stock
NSN: 5331-01-530-9776
FSC Code: 5331
MPN: 54672025DD0

5331-01-530-9773 (54-67-2012DD0)

NIIN: 01-530-9773
In stock
NSN: 5331-01-530-9773
FSC Code: 5331
MPN: 54672012DD0

5331-01-530-9767 (54-66-5119DD0)

NIIN: 01-530-9767
In stock
NSN: 5331-01-530-9767
FSC Code: 5331
MPN: 54665119DD0

5331-01-380-6198 (54-62-1214)

NIIN: 01-380-6198
In stock
NSN: 5331-01-380-6198
FSC Code: 5331
MPN: 54621214

5331-01-196-2478 (A3101-11)

NIIN: 01-196-2478
In stock
NSN: 5331-01-196-2478
FSC Code: 5331
MPN: A310111

5331-01-562-3009 (546198-03)

NIIN: 01-562-3009
In stock
NSN: 5331-01-562-3009
FSC Code: 5331
MPN: 54619803

5331-01-250-1386 (A309283)

NIIN: 01-250-1386
In stock
NSN: 5331-01-250-1386
FSC Code: 5331
MPN: A309283

5331-00-982-2762 (A30915)

NIIN: 00-982-2762
In stock
NSN: 5331-00-982-2762
FSC Code: 5331
MPN: A30915

5331-01-374-4064 (5-45-4887-4)

NIIN: 01-374-4064
In stock
NSN: 5331-01-374-4064
FSC Code: 5331
MPN: 54548874

5331-00-838-0503 (A30760)

NIIN: 00-838-0503
In stock
NSN: 5331-00-838-0503
FSC Code: 5331
MPN: A30760

5331-00-989-0221 (A30652)

NIIN: 00-989-0221
In stock
NSN: 5331-00-989-0221
FSC Code: 5331
MPN: A30652

5331-01-468-8039 (ENDS120889-0020)

NIIN: 01-468-8039
In stock
NSN: 5331-01-468-8039
FSC Code: 5331
MPN: ENDS1208890020

5331-01-422-4380 (54458-94)

NIIN: 01-422-4380
In stock
NSN: 5331-01-422-4380
FSC Code: 5331
MPN: 5445894

5331-01-446-3480 (543-S-1313-05)

NIIN: 01-446-3480
In stock
NSN: 5331-01-446-3480
FSC Code: 5331
MPN: 543S131305

5331-01-446-3481 (543-S-1313-20)

NIIN: 01-446-3481
In stock
NSN: 5331-01-446-3481
FSC Code: 5331
MPN: 543S131320

5331-01-485-9386 (543871-003)

NIIN: 01-485-9386
In stock
NSN: 5331-01-485-9386
FSC Code: 5331
MPN: 543871003

5331-01-571-4387 (B0612-705-438)

NIIN: 01-571-4387
In stock
NSN: 5331-01-571-4387
FSC Code: 5331
MPN: B0612705438

5331-01-485-9389 (543871-008)

NIIN: 01-485-9389
In stock
NSN: 5331-01-485-9389
FSC Code: 5331
MPN: 543871008

5331-01-485-9395 (543871-007)

NIIN: 01-485-9395
In stock
NSN: 5331-01-485-9395
FSC Code: 5331
MPN: 543871007

5331-01-471-7396 (OR193.34X1.78MM-80EP)

NIIN: 01-471-7396
In stock
NSN: 5331-01-471-7396
FSC Code: 5331
MPN: OR19334X178MM80EP

5331-01-485-9394 (543871-010)

NIIN: 01-485-9394
In stock
NSN: 5331-01-485-9394
FSC Code: 5331
MPN: 543871010

5331-01-485-9383 (543871-002)

NIIN: 01-485-9383
In stock
NSN: 5331-01-485-9383
FSC Code: 5331
MPN: 543871002

5331-00-914-9266 (A30347300-3)

NIIN: 00-914-9266
In stock
NSN: 5331-00-914-9266
FSC Code: 5331
MPN: A303473003

5331-01-171-6294 (A30-15-11-00-99)

NIIN: 01-171-6294
In stock
NSN: 5331-01-171-6294
FSC Code: 5331
MPN: A3015110099

5331-00-194-3705 (A301500)

NIIN: 00-194-3705
In stock
NSN: 5331-00-194-3705
FSC Code: 5331
MPN: A301500

5331-01-174-8617 (A30097)

NIIN: 01-174-8617
In stock
NSN: 5331-01-174-8617
FSC Code: 5331
MPN: A30097

5331-01-091-7780 (A-3007-507)

NIIN: 01-091-7780
In stock
NSN: 5331-01-091-7780
FSC Code: 5331
MPN: A3007507

5331-01-435-9046 (5-412L1120-70)

NIIN: 01-435-9046
In stock
NSN: 5331-01-435-9046
FSC Code: 5331
MPN: 5412L112070

5331-01-190-1878 (A-30059-4)

NIIN: 01-190-1878
In stock
NSN: 5331-01-190-1878
FSC Code: 5331
MPN: A300594

5331-01-107-9905 (A30007)

NIIN: 01-107-9905
In stock
NSN: 5331-01-107-9905
FSC Code: 5331
MPN: A30007

5331-01-107-9904 (A30008)

NIIN: 01-107-9904
In stock
NSN: 5331-01-107-9904
FSC Code: 5331
MPN: A30008

5331-00-462-4524 (A2932)

NIIN: 00-462-4524
In stock
NSN: 5331-00-462-4524
FSC Code: 5331
MPN: A2932

5331-01-528-4766 (540-902111.4)

NIIN: 01-528-4766
In stock
NSN: 5331-01-528-4766
FSC Code: 5331
MPN: 5409021114

5331-00-909-7118 (A29328)

NIIN: 00-909-7118
In stock
NSN: 5331-00-909-7118
FSC Code: 5331
MPN: A29328

5331-00-909-7117 (A29319)

NIIN: 00-909-7117
In stock
NSN: 5331-00-909-7117
FSC Code: 5331
MPN: A29319

5331-00-909-7116 (A29321)

NIIN: 00-909-7116
In stock
NSN: 5331-00-909-7116
FSC Code: 5331
MPN: A29321

5331-01-315-7288 (A2916K)

NIIN: 01-315-7288
In stock
NSN: 5331-01-315-7288
FSC Code: 5331
MPN: A2916K

5331-00-001-9862 (A2916Z)

NIIN: 00-001-9862
In stock
NSN: 5331-00-001-9862
FSC Code: 5331
MPN: A2916Z

5331-01-204-0111 (A2916S)

NIIN: 01-204-0111
In stock
NSN: 5331-01-204-0111
FSC Code: 5331
MPN: A2916S

5331-00-484-6265 (A2916R)

NIIN: 00-484-6265
In stock
NSN: 5331-00-484-6265
FSC Code: 5331
MPN: A2916R

5331-01-338-6649 (A2916JT)

NIIN: 01-338-6649
In stock
NSN: 5331-01-338-6649
FSC Code: 5331
MPN: A2916JT

5331-01-132-5561 (A2916HG)

NIIN: 01-132-5561
In stock
NSN: 5331-01-132-5561
FSC Code: 5331
MPN: A2916HG

5331-00-932-8117 (A2916ER)

NIIN: 00-932-8117
In stock
NSN: 5331-00-932-8117
FSC Code: 5331
MPN: A2916ER

5331-01-138-4613 (A2916HX)

NIIN: 01-138-4613
In stock
NSN: 5331-01-138-4613
FSC Code: 5331
MPN: A2916HX

5331-01-204-0110 (A2916GT)

NIIN: 01-204-0110
In stock
NSN: 5331-01-204-0110
FSC Code: 5331
MPN: A2916GT

5331-00-494-2752 (A2916GS)

NIIN: 00-494-2752
In stock
NSN: 5331-00-494-2752
FSC Code: 5331
MPN: A2916GS