National Stock Number
3431-01-397-4362
National Stock Number (NSN) 3431-01-397-4362, or NIIN 013974362, (welding machine,inverter) was assigned October 11, 1994 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 3 stock numbers: 3431015071712, 3431014299569, 3431013878144.
There are 7 manufacturer part numbers associated with this NSN. 6 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 2 suppliers are listed as Active suppliers 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, with the most recent procurement date of Apr 10, 2017. There have been 14 contracts issued for this part number, with 14 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 5 different suppliers. The last contract numbers awarded were: SPE8E517V2052, SPE8E517V1765, SPE8E516V2277, SPE8E516M0044, SPE8E515M2183. The total value of the awarded contracts has been US$ 426,946.95.
This NSN is fairly common among different weapons systems, belonging to 16 different platforms.
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 Mar 20, 2019, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 51696. [AN ITEM DESIGNED TO PERFORM MULTIWELDING AND/OR CUTTING OPERATIONS BY USING A UNIQUE ELECTRICAL ARRANGEMENT TO CONTROL THE PROCESS.]. 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 3431013974362 does not contain precious metals.
This NSN is associated to Schedule B 8515902000: welding machine parts and parts of apparatus. The Schedule B End Use is listed as metalworking machine tools. NAICS classification category 333992: welding and soldering equipment manufacturing.
This information was last updated on Aug 01, 2025.