NSN 3020-01-163-0773, 3020011630773
GEAR SET,SPUR,INTERNAL

Federal Supply Classification: FSC 3020 - Gears, Pulleys, Sprockets, and Transmission Chain
National Item Identification Number: NIIN 011630773
Codification Country: United States
Item Name Code: INC 77777
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

Manufacture or supply this part?
Join our growing community of certified suppliers.

Let Us Know

CALL ABOUT NSN 3020-01-163-0773

Our client representatives are standing by to help fulfill your request.

+1-321-773-5710

REQUEST QUOTE for 3020-01-163-0773

Have a list that needs to be quoted? Upload it here.

Upload a List

DLMS^® Summary

National Stock Number 3020-01-163-0773

National Stock Number (NSN) 3020-01-163-0773, or NIIN 011630773, (gear set,spur,internal) was assigned September 27, 1983 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN.

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 4 different weapons systems.

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 Aug 02, 2004, 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) 77777. 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 3020011630773 does not contain precious metals.

This information was last updated on Jul 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) STEEL AISI 4340;CONSISTS OF CLUSTER SPUR GEAR;1ST GEAR 40 TEETH,4.200 IN.OD,4.000 IN.PITCH DIA,0.688 IN.FACE W,20 DEG PRESSURE ANGLE;2ND GEAR 34 TEETH,3.600 IN.OD,3.400 IN.PITCH DIA,0.876 IN.FACE W,20 DEG PRESSURE ANGLE;2.590 IN.O/A LG;INTERNAL GEAR 48 TEETH,4.800 IN.PITCH DIA,20 DEG PRESSURE ANGLE,0.687 IN.FACE W,1.062 IN.O/A LG;2ND INTERNAL GEAR 42 TEETH,4.200 IN.PITCH DIA,0.875 IN.FACE W,20 DEG PRESSURE ANGLE,3.938 IN.O/A LG