National Stock Number
1650-00-115-5781
National Stock Number (NSN) 1650-00-115-5781, or NIIN 001155781, (power unit,ram air,emergency) was assigned September 20, 1968 in the Federal Logistics Information System (FLIS). NIIN 001155781 was cancelled on August 24, 2011, 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 are 2 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, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers 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) 61769. [A DEVICE WHICH INCLUDES A TURBINE, GOVERNOR, SPEEDSENSING DEVICE, AND A GEAR BOX. ITS POWER SOURCE IS RAM AIR. IT IS DESIGNED TO PRODUCE A PREDETERMINED OUTPUT SHAFT SPEED TO OPERATE A HYDRAULIC PUMP AND/OR AN ELECTRIC GENERATOR DRIVE, WHICH FURNISHES EMERGENCY POWER TO AIRCRAFT IN CASE OF HYDRAULIC AND/OR ELECTRICAL SYSTEM FAILURE. THE UNIT MAY INCLUDE THE PUMP AND/OR THE GENERATOR. FOR ITEMS WHICH PROVIDE POWER DURING NORMAL AIRCRAFT OPERATION, SEE DRIVE, CONSTANT SPEED (AS MODIFIED).]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1650001155781 does not contain precious metals.
This information was last updated on Jul 01, 2025.