National Stock Number
1660-01-523-6061
National Stock Number (NSN) 1660-01-523-6061, or NIIN 015236061, (heat exchanger,fluid to fluid,aircraft) was assigned September 9, 2004 in the Federal Logistics Information System (FLIS). NIIN 015236061 was cancelled on December 12, 2019, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. 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, one supplier is 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) 51879. [A HEAT TRANSFER DEVICE DESIGNED TO LOWER THE TEMPERATURE OF ONE FLUID BY PASSING IT, BY MEANS OF TUBES, PIPES, OR THE LIKE, THROUGH ANOTHER FLUID. THE SECOND FLUID WOULD, DEPENDING UPON THE DESIGN, EITHER RAISE OR LOWER THE TEMPERATURE OF THE FIRST FLUID. SEE ALSO; HEAT EXCHANGER (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 1660015236061 does not contain precious metals.
This information was last updated on Jul 01, 2025.