National Stock Number
1660-00-434-7044
National Stock Number (NSN) 1660-00-434-7044, or NIIN 004347044, (diffuser,air,aircraft heating and ventilating) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 004347044 was cancelled on December 2, 2005, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN replaces 1 stock number, 1660003405344.
There are 7 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) 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.]. 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 1660004347044 does not contain precious metals.
This information was last updated on Aug 01, 2025.