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Technical Data Sheet
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21690600 — GEAR,DRIVE,TACHOMETER

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

21690600: GEAR,DRIVE,TACHOMETER.

The GEAR,DRIVE,TACHOMETER is a the manufacturer industrial component. Key specifications include end_item_identification: 2815-01-178-5461, general_characteristics_item_description: STEEL,0.969 IN.DIA,0.672 IN LG IN. This part is cataloged in the U.S.

Government catalog under NSN 3020-01-070-7980, 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
21690600
NSN: 3020-01-070-7980
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
end_item_identification2815-01-178-5461
general_characteristics_item_descriptionSTEEL,0.969 IN.DIA,0.672 IN LG IN
NSN3020-01-070-7980
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR,DRIVE,TACHOMETER TITLE COMPONENT PN 21690600 MFR GEAR,DRIVE,TACHOMETER
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL,0.969 IN.DIA,0.672 IN LG IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL,0.969 IN.DIA,0.672 IN LG IN
END ITEM IDENTIFICATION2815-01-178-5461
SUBSTITUTES & CROSS-REFERENCES 1
216906Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21690600?
21690600 is a GEAR,DRIVE,TACHOMETER.
What parts can replace 21690600?
There is 1 known substitute for 21690600: 216906. Substitute compatibility should be verified for your specific system.
What is the NSN for 21690600?
21690600 is cataloged in the U.S. Government catalog under NSN 3020-01-070-7980. 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.