NSN 3020-01-045-7438, 3020010457438
GEAR,SPUR

Federal Supply Classification: FSC 3020 - Gears, Pulleys, Sprockets, and Transmission Chain
National Item Identification Number: NIIN 010457438
Codification Country: United States
Item Name Code: INC 05466
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS^® Summary

National Stock Number 3020-01-045-7438

National Stock Number (NSN) 3020-01-045-7438, or NIIN 010457438, (gear,spur) was assigned August 7, 1977 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

This NSN is assigned to Item Name Code (INC) 05466. [A GEAR, CYLINDRICAL IN FORM, WITH STRAIGHT TEETH ON THE OUTER SURFACE PARALLEL TO THE AXIS OF THE GEAR. SEE ALSO GEAR, ANTIBACKLASH, SPUR. FOR BULK MATERIAL, SEE ROD, PINION.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 3020010457438 contains an unknown precious metal.

This information was last updated on Jun 01, 2025.

Technical Characteristics

MATERIAL: (MATT) STEEL CORROSION RESISTING HUB
NOMINAL OUTSIDE DIAMETER: (CWCD) 1.671 INCHES
FIRST STEP NOMINAL LENGTH: (CWWS) 0.921 INCHES FIRST END
SPECIAL FEATURES: (FEAT) FIRST END HUB INCLUDES TWO FLATS
III MATERIAL: (MATT) ALUMINUM ALLOY BODY
III MATERIAL: (MATT) ALUMINUM ALLOY TEETH
TEETH QUANTITY: (AJLA) 105
MATERIAL: (MATT) ALUMINUM ALLOY BODY
SURFACE TREATMENT: (SFTT) ANODIZE BODY
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END: (CWQL) 0.140 INCHES SECOND END
END NOMINAL LENGTH: (CWWH) 0.125 INCHES SECOND END
PITCH DIAMETER: (AGJS) 1.6406 INCHES NOMINAL
TOOTH FORM: (CWNH) STANDARD
SURFACE TREATMENT: (SFTT) ANODIZE TEETH
PRESSURE ANGLE: (CWPP) 20.0000 DEGREES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END: (CWQL) 1.062 INCHES FIRST END
FIRST STEP NOMINAL DIAMETER: (CWXB) 0.375 INCHES SECOND END
III MATERIAL: (MATT) STEEL CORROSION RESISTING HUB
MATERIAL: (MATT) ALUMINUM ALLOY TEETH
BODY STYLE: (AAQL) PLAIN, SOLID
SURFACE TREATMENT: (SFTT) PASSIVATE HUB
STYLE DESIGNATOR: (STYL) PROTRUDING HUBS
FACE NOMINAL WIDTH: (CWRM) 0.125 INCHES
HUB STYLE DESIGNATOR: (CWTR) 1 STEP BOTH ENDS
FIRST STEP NOMINAL DIAMETER: (CWXB) 0.250 INCHES FIRST END
END NOMINAL LENGTH: (CWWH) 0.140 INCHES FIRST END
END NOMINAL DIAMETER: (CWWN) 0.187 INCHES BOTH ENDS
FIRST STEP NOMINAL LENGTH: (CWWS) 0.015 INCHES SECOND END