NSN 3020-00-977-3750, 3020009773750
GEAR,SPUR

Federal Supply Classification: FSC 3020 - Gears, Pulleys, Sprockets, and Transmission Chain
National Item Identification Number: NIIN 009773750
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 3020-00-977-3750

National Stock Number (NSN) 3020-00-977-3750, or NIIN 009773750, (gear,spur) was assigned January 1, 1962 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 3 manufacturer part numbers associated with this NSN. One of those 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 somewhat common among different platforms, belonging to 2 different weapons systems.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jul 02, 2005, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

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 3020009773750 contains an unknown precious metal.

This NSN is associated to Schedule B 8483409000: gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 333612: speed changer, industrial high-speed drive, and gear manufacturing.

This information was last updated on Aug 01, 2025.

Technical Characteristics

HUB STYLE DESIGNATOR: (CWTR) 2 STEPS SECOND END
FIRST STEP NOMINAL DIAMETER: (CWXB) 0.010 INCHES FIRST END
MATERIAL: (MATT) STEEL COMP 303 HUB
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE HUB
FIRST STEP NOMINAL DIAMETER: (CWXB) 0.125 INCHES SECOND END
END NOMINAL LENGTH: (CWWH) 0.030 INCHES FIRST END
END NOMINAL DIAMETER: (CWWN) 0.055 INCHES SECOND END
III MATERIAL: (MATT) ALUMINUM BODY
SECOND STEP NOMINAL LENGTH: (CWXG) 0.015 INCHES SECOND END
SECOND STEP NOMINAL DIAMETER: (CWXL) 0.173 INCHES SECOND END
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: (STDC) MIL-F-14072 FINISH E303 MIL SPEC SINGLE TREATMENT RESPONSE HUB
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) QQ-A-355,COND T3 FED SPEC SINGLE MATERIAL RESPONSE BODY
SURFACE TREATMENT: (SFTT) ANODIZE BODY
END NOMINAL LENGTH: (CWWH) 0.030 INCHES SECOND END
III MATERIAL: (MATT) STEEL COMP 303 HUB
MATERIAL: (MATT) ALUMINUM BODY
SURFACE TREATMENT: (SFTT) PASSIVATE HUB
FIRST STEP NOMINAL LENGTH: (CWWS) 0.125 INCHES FIRST END
SECOND STEP NOMINAL LENGTH: (CWXG) 0.153 INCHES FIRST END
SECOND STEP NOMINAL DIAMETER: (CWXL) 0.187 INCHES FIRST END
FIRST STEP NOMINAL LENGTH: (CWWS) 0.010 INCHES SECOND END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END: (CWQL) 0.153 INCHES FIRST END
END NOMINAL DIAMETER: (CWWN) 0.055 INCHES FIRST END
BODY STYLE: (AAQL) PLAIN, SOLID
END NOMINAL DIAMETER: (CWWN) UNABLE TO DECODE
END NOMINAL LENGTH: (CWWH) UNABLE TO DECODE
FACE NOMINAL WIDTH: (CWRM) 0.050 INCHES
FIRST STEP NOMINAL DIAMETER: (CWXB) UNABLE TO DECODE
FIRST STEP NOMINAL LENGTH: (CWWS) UNABLE TO DECODE
HUB STYLE DESIGNATOR: (CWTR) UNABLE TO DECODE
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) UNABLE TO DECODE
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END: (CWQL) 0.055 INCHES SECOND END
HUB STYLE DESIGNATOR: (CWTR) 2 STEPS FIRST END
PITCH DIAMETER: (AGJS) 0.5000 INCHES NOMINAL
MATERIAL: (MATT) UNABLE TO DECODE
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END: (CWQL) UNABLE TO DECODE
NOMINAL OUTSIDE DIAMETER: (CWCD) 0.516 INCHES
PRESSURE ANGLE: (CWPP) 20.0000 DEGREES
SECOND STEP NOMINAL LENGTH: (CWXG) UNABLE TO DECODE
SECOND STEP NOMINAL DIAMETER: (CWXL) UNABLE TO DECODE
STYLE DESIGNATOR: (STYL) PROTRUDING HUBS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: (STDC) UNABLE TO DECODE
SURFACE TREATMENT: (SFTT) UNABLE TO DECODE
TEETH QUANTITY: (AJLA) 60
TOOTH FORM: (CWNH) STANDARD