National Stock Number
4420-01-256-0320
National Stock Number (NSN) 4420-01-256-0320, or NIIN 012560320, (shell,fluid cooler,industrial) was assigned May 30, 1987 in the Federal Logistics Information System (FLIS). NIIN 012560320 was cancelled on January 2, 2016, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 2930015964759. This NSN does not replace any other NSNs.
There are 3 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is 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 2 different weapons systems.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on May 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) 37496. [A CYLINDRICAL DEVICE WITH FLANGED END(S) DESIGNED TO ENCASE THE CORE ASSEMBLY, FLUID COOLER OF A COOLER, FLUID, INDUSTRIAL. MAY INCLUDE INLET AND OUTLET FLUID CONNECTIONS. EXCLUDES:HOUSING, AS MODIFIED.]. 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 4420012560320 does not contain precious metals.
This information was last updated on Jul 01, 2025.