National Stock Number
2990-01-531-4321
National Stock Number (NSN) 2990-01-531-4321, or NIIN 015314321, (installation kit,engine exhaust) was assigned July 8, 2005 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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, with the most recent procurement date of Jun 01, 2015. There have been 5 contracts issued for this part number, with 3 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE7L415C0101, SPE7L415C0101, SPE7L415C0101, SPE7L415M1618, SPE7L015V1076. The total value of the awarded contracts has been US$ 800,600.92.
This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.
There has been a small amount of 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 Jun 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) 45060. [AN INSTALLATION KIT USED TO INSTALL AN EXHAUST SYSTEM WHERE A GASOLINE OR DIESEL ENGINE IS USED IN DIRECT CONNECTION WITH ANOTHER MAJOR PIECE OF EQUIPMENT. MAY INCLUDE EXHAUST PIPE DIRECTLY CONNECTED TO THE ENGINE.]. 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 2990015314321 does not contain precious metals.
This information was last updated on Aug 01, 2025.