National Stock Number
1660-00-856-9355
National Stock Number (NSN) 1660-00-856-9355, or NIIN 008569355, (heat exchanger,air to air,aircraft) was assigned January 1, 1960 in the Federal Logistics Information System (FLIS). NIIN 008569355 was cancelled on January 23, 2004, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 1660008335140. This NSN does not replace any other NSNs.
There are 2 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 2 suppliers. 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 assigned to Item Name Code (INC) 61419. [A HEAT TRANSFER DEVICE DESIGNED TO LOWER COMPRESSED AIR TEMPERATURE TO AN ACCEPTABLE LEVEL BY PASSING IT THROUGH TUBES AND FLOWING DUCTED RAM AIR OVER THE TUBES, HEAT OF THE COMPRESSED AIR IS TRANSFERRED TO THE RAM AIR REDUCING THE TEMPERATURE. CONSISTS OF A SHEET METAL HOUSING WITH RAM AIR CONNECTION(S) WITH OR WITHOUT DUCTS, A TUBULAR TYPE CORE, INLET AND OUTLET PORTS. MAY CONTAIN A SHUTOFF VALVE. NORMALLY USED IN AIRCRAFT AIR CONDITIONING AND/OR AIR INDUCTION SYSTEMS.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1660008569355 contains platinum family metals.
This information was last updated on Aug 01, 2025.