National Stock Number
1660-00-451-2002
National Stock Number (NSN) 1660-00-451-2002, or NIIN 004512002, (diffuser,air,aircraft heating and ventilating) was assigned May 12, 1971 in the Federal Logistics Information System (FLIS). NIIN 004512002 was cancelled on June 2, 1996, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 1660012007166. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 60400. [A DEVICE FOR INSTALLATION IN AIRCRAFT, USED IN VARYING DESIGNS TO EFFECT THE PROPER DISTRIBUTION OF VENTILATED OR HEATED AIR TO ASSURE TEMPERATURE EQUALIZATION, OR FOR THE DEFROSTING AND DE-ICING OF AIRCRAFT GLASS SURFACES.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1660004512002 does not contain precious metals.
This information was last updated on Aug 01, 2025.