National Stock Number
4520-01-377-4829
National Stock Number (NSN) 4520-01-377-4829, or NIIN 013774829, (stack cap assembly) was assigned July 18, 1993 in the Federal Logistics Information System (FLIS). This NSN replaces 1 stock number, 4520003600098.
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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 01, 2020, 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 4520013774829 does not contain precious metals.
This information was last updated on Aug 01, 2025.