The Department of Defense, through the Defense Logistics Agency (DLA) Aviation Oklahoma City, is issuing a special notice for the procurement of a duct, fan, aircraft, identified by NSN 2840-01-387-2657NZ. This procurement involves the acquisition of specific aircraft engine components, which are critical for maintaining operational readiness and performance of military aircraft. The top drawing for the item is 4084856, with the latest revision dated February 14, 2022, indicating the importance of adhering to precise specifications in the manufacturing process. Interested vendors should refer to the solicitation information for further details and contact the appropriate personnel once the solicitation has been approved for quotes.