National Stock Number
1660-00-446-0937
National Stock Number (NSN) 1660-00-446-0937, or NIIN 004460937, (turbine,aircraft cooling) has an unknown assigned date. NIIN 004460937 was cancelled on November 2, 1991, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN replaces 1 stock number, 1660005677152.
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) 61429. [A NONPOSITIVE DISPLACEMENT MECHANICAL DEVICE DESIGNED TO PROVIDE COOL AIR IN AIRCRAFT AIR CONDITIONING SYSTEMS. COOL AIR OR REDUCTION IN TEMPERATURE IS OBTAINED WHEN THE HEAT OR ENERGY OF COMPRESSED AIR IS REMOVED BY CONVERTING IT TO WORK OR MECHANICAL ENERGY TO DRIVE AN IMPELLER WHEEL. COMPRESSED AIR IS DIRECTED THROUGH NOZZLE VANES AND IMPINGED UPON THE BLADES OF A TURBINE WHEEL CREATING ROTARY MOTION WHICH DRIVES AN IMPELLER WHEEL. CONSISTS OF AN IMPELLER WHEEL, A TURBINE WHEEL MATCHED WITH A NOZZLE RING ON A BEARING MOUNTED SHAFT WITHIN A SCROLL TYPE HOUSING(S).]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1660004460937 contains platinum family metals.
This information was last updated on Aug 01, 2025.