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0390509 — RING SET,PISTON

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

0390509: RING SET,PISTON.

The RING SET,PISTON is a the manufacturer industrial component. Key specifications include ring_set_component_parts: COMPRESSION RING,1; OIL RING,1. This part is cataloged in the U.S.

Government catalog under NSN 2805-01-231-5337, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
0390509
NSN: 2805-01-231-5337
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 1UVT5 — BRP US INC (USA)
SPECIFICATIONS
ring_set_component_partsCOMPRESSION RING,1; OIL RING,1
piston_accommodation_quantity1
NSN2805-01-231-5337
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING SET,PISTON TITLE COMPONENT PN 0390509 MFR RING SET,PISTON
KEY FEATURES
•
RING SET COMPONENT PARTS: COMPRESSION RING,1; OIL RING,1
•
PISTON ACCOMMODATION QUANTITY: 1
TECHNICAL CHARACTERISTICS
RING SET COMPONENT PARTSCOMPRESSION RING,1; OIL RING,1
PISTON ACCOMMODATION QUANTITY1
SUBSTITUTES & CROSS-REFERENCES 1
390509Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 0390509?
0390509 is a RING SET,PISTON.
What parts can replace 0390509?
There is 1 known substitute for 0390509: 390509. Substitute compatibility should be verified for your specific system.
What is the NSN for 0390509?
0390509 is cataloged in the U.S. Government catalog under NSN 2805-01-231-5337. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.