National Stock Number
4320-00-155-7754
National Stock Number (NSN) 4320-00-155-7754, or NIIN 001557754, (exchanger heat) was assigned January 17, 1973 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.
There are 6 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Oct 03, 2017. There have been 2 contracts issued for this part number, with 2 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7M118V0048, SPE7M116M7391, SPE7M116M7391. The total value of the awarded contracts has been US$ 3,670.34.
This NSN is somewhat common among different platforms, belonging to 5 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 Jan 01, 2013, this NSN's acquisition method was noted as: Suitable for competitive acquisition for the first time. (Potential sources shall include dealers/distributors.) The data or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. Valid AMCs: 1, 2, 3, 4 and 5.
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 4320001557754 contains an unknown precious metal.
This NSN is associated to Schedule B 8419500000: heat exchange units, industrial type. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 332410: power boiler and heat exchanger manufacturing.
This information was last updated on Jul 01, 2025.