National Stock Number
1660-00-055-7093
National Stock Number (NSN) 1660-00-055-7093, or NIIN 000557093, (turbine,aircraft cooling) was assigned May 25, 1967 in the Federal Logistics Information System (FLIS). NIIN 000557093 was cancelled on August 29, 2018, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN replaces 2 stock numbers: 1660007905916, 1660006279852.
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) 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).]. 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 1660000557093 does not contain precious metals.
This information was last updated on Jun 01, 2024.