NSN 3020-00-050-6837, 3020000506837
GEAR,SPUR

Federal Supply Classification: FSC 3020 - Gears, Pulleys, Sprockets, and Transmission Chain
National Item Identification Number: NIIN 000506837
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.

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DLMS^® Summary

National Stock Number 3020-00-050-6837

National Stock Number (NSN) 3020-00-050-6837, or NIIN 000506837, (gear,spur) was assigned May 16, 1967 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 2 manufacturer part numbers 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. ISO Group has several sources of supply for this NSN.

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

There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. 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 3020000506837 does not contain precious metals.

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 Jul 01, 2025.

Technical Characteristics

III MATERIAL: (MATT) ALUMINUM ALLOY 6061 OVERALL
ATTACHMENT METHOD: (ABSX) MOUNTING HOLE
BODY STYLE: (AAQL) PLAIN, SOLID
BOLT HOLE CIRCLE NOMINAL DIAMETER: (CWZN) 0.438 INCHES AXIALLY THROUGH HUB, FIRST END
BORE NOMINAL DIAMETER: (CWRS) 0.241 INCHES BOTH ENDS
BORE STYLE: (ANTP) W/COUNTERBORE BOTH ENDS
COUNTERBORE NOMINAL DEPTH: (CWTB) 0.0710 INCHES FIRST END
COUNTERBORE NOMINAL DIAMETER: (CWTG) 1.000 INCHES SECOND END
END NOMINAL DIAMETER: (CWWN) 0.6200 INCHES FIRST END
END NOMINAL LENGTH: (CWWH) 0.3100 INCHES FIRST END
FACE NOMINAL WIDTH: (CWRM) 0.125 INCHES
FIRST STEP NOMINAL DIAMETER: (CWXB) 1.2700 INCHES FIRST END
FIRST STEP NOMINAL LENGTH: (CWWS) 0.0710 INCHES FIRST END
HUB STYLE DESIGNATOR: (CWTR) 1 STEP FIRST END
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) QQ-A-225/8,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL: (MATT) ALUMINUM ALLOY 6061 OVERALL
MOUNTING HOLE NOMINAL DIAMETER: (CWZK) 0.112 INCHES AXIALLY THROUGH BODY, FIRST END
MOUNTING HOLE TYPE AND QUANTITY: (CTQY) 2 PLAIN AXIALLY THROUGH HUB, FIRST END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END: (CWQL) 0.3810 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER: (CWCD) 2.7210 INCHES
PITCH DIAMETER: (AGJS) 2.6657 INCHES MINIMUM AND 2.6667 INCHES MAXIMUM
PRECISION CLASSIFICATION: (CWWK) QUALITY NUMBER 10 OR QUALITY NUMBER 11
PRESSURE ANGLE: (CWPP) 20.0000 DEGREES
STYLE DESIGNATOR: (STYL) PROTRUDING HUB
TEETH QUANTITY: (AJLA) 96
TOOTH FORM: (CWNH) STANDARD