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9N1973 — GEAR CLUSTER

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

9N1973: GEAR CLUSTER.

The GEAR CLUSTER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, design_type: SPUR ALL GEARS, construction: SOLID, hub_nominal_length: 1.813 INCHES BETWEEN FIRST AND SECOND GEAR IN, hub_nominal_diameter: 2.062 INCHES SECOND ENDUNABLE TO DECODE IN, hub_style_designator: 1 STEP BOTH ENDS. This part is cataloged in the U.S.

Government catalog under NSN 3020-01-077-3474, 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
9N1973
NSN: 3020-01-077-3474
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
design_typeSPUR ALL GEARS
constructionSOLID
hub_nominal_length1.813 INCHES BETWEEN FIRST AND SECOND GEAR IN
hub_nominal_diameter2.062 INCHES SECOND ENDUNABLE TO DECODE IN
hub_style_designator1 STEP BOTH ENDS
nominal_overall_length10.412 INCHES IN
nominal_outside_diameter3.800 INCHES THIRD GEAR IN
NSN3020-01-077-3474
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR CLUSTER TITLE COMPONENT PN 9N1973 MFR GEAR CLUSTER
KEY FEATURES
•
HUB NOMINAL DIAMETER: 2.000 INCHES BETWEEN THIRD AND FOURTH GEAR IN
•
DESIGN TYPE: SPUR ALL GEARS
•
NOMINAL OVERALL LENGTH: 10.412 INCHES IN
TECHNICAL CHARACTERISTICS
HUB NOMINAL DIAMETER2.000 INCHES BETWEEN THIRD AND FOURTH GEAR IN
HUB NOMINAL DIAMETER2.062 INCHES SECOND ENDUNABLE TO DECODE IN
HUB NOMINAL DIAMETER2.115 INCHES FIRST ENDUNABLE TO DECODE IN
HUB NOMINAL DIAMETER4.000 INCHES BETWEEN FIRST AND SECOND GEARUNABLE TO DECODE IN
HUB NOMINAL DIAMETER4.000 INCHES BETWEEN SECOND AND THIRD GEARUNABLE TO DECODE IN
HUB NOMINAL DIAMETERUNABLE TO DECODE2.115 INCHES FIRST END2.115 INCHES FIRST END IN
DESIGN TYPESPUR ALL GEARS
NOMINAL OVERALL LENGTH10.412 INCHES IN
HUB STYLE DESIGNATOR1 STEP BETWEEN FIRST AND SECOND GEAR
HUB STYLE DESIGNATOR1 STEP BOTH ENDS
OTHER ITEMS IN FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3020-00-000-0091 3020-00-001-0027 3020-00-001-0028 3020-00-001-0063 3020-00-001-0064 3020-00-001-0066 3020-00-001-0071 3020-00-001-0072
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 9N1973?
9N1973 is a GEAR CLUSTER.
What is the NSN for 9N1973?
9N1973 is cataloged in the U.S. Government catalog under NSN 3020-01-077-3474. 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.