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Technical Data Sheet
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110-3991 — TAPPET,ENGINE POPPET VALVE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

110-3991: TAPPET,ENGINE POPPET VALVE.

The TAPPET,ENGINE POPPET VALVE is a the manufacturer industrial component. Key specifications include end_item_identification: 7.5KW GENERATOR SET, part_name_assigned_by_controlling_agency: VALVE,EXHAUST. This part is cataloged in the U.S.

Government catalog under NSN 2815-01-620-5247, 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
110-3991
NSN: 2815-01-620-5247
FSC: 2815 — Diesel Engines and Components
CAGE: 3Z577 — ONAN CORP ONAN POWER/ELECTRONICS DIV (USA)
SPECIFICATIONS
end_item_identification7.5KW GENERATOR SET
part_name_assigned_by_controlling_agencyVALVE,EXHAUST
NSN2815-01-620-5247
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TAPPET,ENGINE POPPET VALVE TITLE COMPONENT PN 110-3991 MFR TAPPET,ENGINE POPPET V
TECHNICAL CHARACTERISTICS
PART NAME ASSIGNED BY CONTROLLING AGENCYVALVE,EXHAUST
END ITEM IDENTIFICATION7.5KW GENERATOR SET
OTHER ITEMS IN FSC 2815 — Diesel Engines and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2815-00-000-0075 2815-00-001-0022 2815-00-001-3475 2815-00-001-7728 2815-00-001-7737 2815-00-001-7805 2815-00-001-7806 2815-00-001-7813
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 110-3991?
110-3991 is a TAPPET,ENGINE POPPET VALVE.
What is the NSN for 110-3991?
110-3991 is cataloged in the U.S. Government catalog under NSN 2815-01-620-5247. 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.