The Department of Defense, through the Defense Logistics Agency (DLA) Aviation Oklahoma City, has issued a Special Notice for the procurement of a duct turbine for aircraft, identified by the National Stock Number (NSN) 2840-01-504-2791NZ. The specific item required is a duct turbine, with the top drawing number 4086297 and the latest revision dated February 6, 2020. This component is critical for the operation of aircraft engines, underscoring its importance in maintaining military aviation capabilities. Interested vendors should refer to the solicitation information for further details and contact the appropriate personnel once the solicitation has been approved for quotes.