3978021 — ADJUSTING DEVICE,BELT-CHAIN TENS

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

3978021: ADJUSTING DEVICE,BELT-CHAIN TENS.

ADJUSTING DEVICE,BELT-CHAIN TENS. Key specifications include special_features: BELT TENSIONER, CYLINDER 6B5.9, 6C8.3, G6 8.3, G6B 5.9 GAS, end_item_identification: DRIVE, ALTERNATOR EH97436, part_name_assigned_by_controlling_agency: ADJUSTOR, BELT TENSION. This part is cataloged in the U.S.

Government catalog under NSN 2990-01-549-1208, 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

3978021

NSN: 2990-01-549-1208
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
CAGE: 15434 — CUMMINS INC. (USA)

SPECIFICATIONS

special_features	BELT TENSIONER, CYLINDER 6B5.9, 6C8.3, G6 8.3, G6B 5.9 GAS
end_item_identification	DRIVE, ALTERNATOR EH97436
part_name_assigned_by_controlling_agency	ADJUSTOR, BELT TENSION
NSN	2990-01-549-1208

COMPONENT DIAGRAM

TECHNICAL CHARACTERISTICS

SPECIAL FEATURES	BELT TENSIONER, CYLINDER 6B5.9, 6C8.3, G6 8.3, G6B 5.9 GAS
PART NAME ASSIGNED BY CONTROLLING AGENCY	ADJUSTOR, BELT TENSION
END ITEM IDENTIFICATION	DRIVE, ALTERNATOR EH97436

OTHER ITEMS IN FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

2990-00-001-0001 2990-00-001-1248 2990-00-001-1250 2990-00-001-2055 2990-00-001-3498 2990-00-001-3520 2990-00-001-3521 2990-00-001-3522

SUBSTITUTES & CROSS-REFERENCES 1

02/912461Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 3978021?

3978021 is a ADJUSTING DEVICE,BELT-CHAIN TENS.

What parts can replace 3978021?

There is 1 known substitute for 3978021: 02/912461. Substitute compatibility should be verified for your specific system.

What is the NSN for 3978021?

3978021 is cataloged in the U.S. Government catalog under NSN 2990-01-549-1208. This indicates validated use in U.S. government and defense supply chains.

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3978021 — ADJUSTING DEVICE,BELT-CHAIN TENS

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