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3921888 — PISTON,INTERNAL COMBUSTION ENGIN

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

3921888: PISTON,INTERNAL COMBUSTION ENGIN.

PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include end_item_identification: 1940012189165 BOAT,BRIDGE ERECTION,INBOARD ENGINE. This part is cataloged in the U.S.

Government catalog under NSN 2805-01-604-9345, 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
3921888
NSN: 2805-01-604-9345
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
end_item_identification1940012189165 BOAT,BRIDGE ERECTION,INBOARD ENGINE
NSN2805-01-604-9345
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PISTON,INTERNAL COMBUSTION ENGIN TITLE COMPONENT PN 3921888 MFR PISTON,INTERNAL COMBUS
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATION1940012189165 BOAT,BRIDGE ERECTION,INBOARD ENGINE
OTHER ITEMS IN FSC 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2805-00-010-2959 2805-00-066-3426 2805-00-326-0797 2805-00-395-7778 2805-00-422-9321 2805-00-447-9114 2805-00-448-0786 2805-00-561-9463
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3921888?
3921888 is a PISTON,INTERNAL COMBUSTION ENGIN.
What is the NSN for 3921888?
3921888 is cataloged in the U.S. Government catalog under NSN 2805-01-604-9345. 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.