National Stock Number
4520-00-900-7998
National Stock Number (NSN) 4520-00-900-7998, or NIIN 009007998, (drive arm) was assigned January 1, 1960 in the Federal Logistics Information System (FLIS). This NSN replaces 5 stock numbers: 5895003493857, 5895003493848, 2920002138504, 2910000965821, 2910009069072.
There are 5 manufacturer part numbers associated with this NSN. 4 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are 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 5 different weapons systems.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 02, 2006, 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 4520009007998 contains an unknown precious metal.
This NSN is associated to Schedule B 8803909060: other parts, nesoi, for use in other military aircraft, spacecraft and spacecraft launch vehicles (excluding parts of communication satellites). The Schedule B End Use is listed as parts for military-type goods. NAICS classification category 336419: other guided missile and space vehicle parts and auxiliary equipment manufacturing.
This information was last updated on Aug 01, 2025.