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3978022 — ARM,ADJUSTING,BELT TENSION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

3978022: ARM,ADJUSTING,BELT TENSION.

The ARM,ADJUSTING,BELT TENSION is a the manufacturer industrial component. Key specifications include end_item_identification: 3895-01-331-8560; 2420-66-148-7692, HMEE (HIGH MOBILITY ENGINEER EXCAVATOR); 3990-01-444-5196 CEMENT MIXER. This part is cataloged in the U.S.

Government catalog under NSN 3020-01-341-2477, 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
3978022
NSN: 3020-01-341-2477
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
end_item_identification3895-01-331-8560; 2420-66-148-7692, HMEE (HIGH MOBILITY ENGINEER EXCAVATOR); 3990-01-444-5196 CEMENT MIXER
NSN3020-01-341-2477
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ARM,ADJUSTING,BELT TENSION TITLE COMPONENT PN 3978022 MFR ARM,ADJUSTING,BELT TEN
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATION3895-01-331-8560; 2420-66-148-7692, HMEE (HIGH MOBILITY ENGINEER EXCAVATOR); 3990-01-444-5196 CEMENT MIXER
SUBSTITUTES & CROSS-REFERENCES 9
771721012501Reference document
Same NSN cross-reference
Reference document — Secondary reference
3934818Reference document
Same NSN cross-reference
Reference document — Secondary reference
3020PL1320935Reference document
Same NSN cross-reference
Reference document — Informative reference only
3802287Reference document
Same NSN cross-reference
Reference document — Secondary reference
3914086Reference document
Same NSN cross-reference
Reference document — Secondary reference
3937553Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3978022?
3978022 is a ARM,ADJUSTING,BELT TENSION.
What parts can replace 3978022?
There are 9 known substitutes for 3978022: 771721012501, 3934818, 3020PL1320935 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3978022?
3978022 is cataloged in the U.S. Government catalog under NSN 3020-01-341-2477. 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.