National Stock Number
2840-99-257-9634
National Stock Number (NSN) 2840-99-257-9634, or NIIN 992579634, (rotor,turbine,aircraft gas turbine engine) has an unknown assigned date. 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) 50591. [A SINGLE OR MULTISTAGE ASSEMBLY DESIGNED TO RECEIVE THERMAL ENERGY FROM THE COMBUSTION SECTION AND CONVERT IT TO MECHANICAL ENERGY TO DRIVE THE ROTOR, COMPRESSOR, AIRCRAFT GAS TURBINE ENGINE AND/OR THE ROTOR, FAN, AIRCRAFT GAS TURBINE ENGINE THROUGH A SHAFT, TURBINE, AIRCRAFT GAS TURBINE ENGINE. IT CONSISTS OF DISKS, BLADES, HUBS, AND THE LIKE. IT IS THE MOVING PART OF A TURBINE ASSEMBLY, AIRCRAFT GAS TURBINE ENGINE. IT HAS FACILITIES FOR ATTACHING TO A SHAFT, TURBINE, AIRCRAFT GAS TURBINE ENGINE.].
This information was last updated on Nov 26, 2025.