National Stock Number
1660-00-404-3326
National Stock Number (NSN) 1660-00-404-3326, or NIIN 004043326, (impeller wheel,aircraft cooling turbine) was assigned August 1, 1969 in the Federal Logistics Information System (FLIS). NIIN 004043326 was cancelled on March 20, 2002, 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) 61421. [AN ITEM CONSISTING OF BLADES, VANES OR PADDLES EQUALLY SPACED AROUND THE PERIPHERY OR FACE OF A HUB, ROTOR OR WHEEL. IT IS TURBINE WHEEL OR SHAFT DRIVEN. DESIGNED PRIMARILY AS A MEANS FOR ABSORBING THE ENERGY AND TO ACT AS A GOVERNING FORCE FOR A TURBINE WHEEL. ALSO AIDS IN DRAWING RAM AIR THROUGH A HEAT EXCHANGER. MAY BE USED TO COMPRESS THE AIR REQUIRED TO DRIVE THE TURBINE WHEEL. IT IS A ROTATING PART OF AN AIRCRAFT COOLING TURBINE.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1660004043326 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.