National Stock Number
2840-00-445-7507
National Stock Number (NSN) 2840-00-445-7507, or NIIN 004457507, (seal,air,gas turbine engine) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 004457507 was cancelled on July 2, 1999, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 5365007616186. This NSN does not replace any other NSNs.
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) 40964. [INC 40964 CANCELLED/REPLACED BY ,INC 50596, FIIG A10700, APP-KEY H ,INC 50595, FIIG A10700, APP-KEY H , ON 080996 A RIGID METALLIC ITEM, GENERALLY CIRCULAR, DESIGNED TO PREVENT LEAKAGE OR BYPASS OF AIR IN AN ENGINE, GAS TURBINE. IT MAY BE OF VARIOUS CROSS-SECTIONAL SHAPES. IT CAN BE LOCATED ON THE ROTOR OR AROUND THE INTERNAL PERIPHERY OF THE CASE AND MAY HAVE MOUNTING FACILITIES. IT MAY BE FORMED OF SEGMENTED ARCS.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 2840004457507 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.