NSN 3020-00-815-7517, 3020008157517
GEAR,SPUR

Federal Supply Classification: FSC 3020 - Gears, Pulleys, Sprockets, and Transmission Chain
National Item Identification Number: NIIN 008157517
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 3020-00-815-7517

National Stock Number (NSN) 3020-00-815-7517, or NIIN 008157517, (gear,spur) was assigned January 1, 1962 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 3020008157517 contains an unknown precious metal.

This information was last updated on Jul 01, 2025.

Technical Characteristics

END NOMINAL LENGTH: (CWWH) 0.115 INCHES FIRST END
FIRST STEP NOMINAL DIAMETER: (CWXB) 0.170 INCHES FIRST END
BODY STYLE: (AAQL) PLAIN, SOLID
PITCH DIAMETER: (AGJS) 0.5000 INCHES NOMINAL
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END: (CWQL) 0.320 INCHES SECOND END
PRESSURE ANGLE: (CWPP) 20.0000 DEGREES
END NOMINAL LENGTH: (CWWH) 0.115 INCHES SECOND END
HUB STYLE DESIGNATOR: (CWTR) 1 STEP SECOND END
FIRST STEP NOMINAL LENGTH: (CWWS) 0.205 INCHES SECOND END
SPECIAL FEATURES: (FEAT) RELIEF GROOVE ON BOTH ENDS
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) MIL-S-7720,COMP 303S,COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER: (CWCD) 0.517 INCHES
FIRST STEP NOMINAL LENGTH: (CWWS) 0.210 INCHES FIRST END
III MATERIAL: (MATT) STEEL OVERALL
TOOTH FORM: (CWNH) STANDARD
END NOMINAL DIAMETER: (CWWN) 0.125 INCHES FIRST END
FIRST STEP NOMINAL DIAMETER: (CWXB) 0.170 INCHES SECOND END
TEETH QUANTITY: (AJLA) 60
MATERIAL: (MATT) STEEL OVERALL
FACE NOMINAL WIDTH: (CWRM) 0.120 INCHES
HUB STYLE DESIGNATOR: (CWTR) 1 STEP FIRST END
SURFACE TREATMENT: (SFTT) PASSIVATE OVERALL
STYLE DESIGNATOR: (STYL) PROTRUDING HUBS
END NOMINAL DIAMETER: (CWWN) 0.125 INCHES SECOND END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END: (CWQL) 0.325 INCHES FIRST END