National Stock Number
4420-01-104-8645
National Stock Number (NSN) 4420-01-104-8645, or NIIN 011048645, (heat exchanger,asse) was assigned December 12, 1980 in the Federal Logistics Information System (FLIS). NIIN 011048645 was cancelled on December 2, 2006, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 5840006035237. This NSN does not replace any other NSNs.
There is only one manufacturer part number 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, there are no suppliers listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are 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 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 4420011048645 does not contain precious metals.
This information was last updated on Jul 01, 2025.