The Department of Defense, specifically the Department of the Navy, is seeking to procure 70 units of a Vaneaxial Fan, identified by NSN 7H-4140-016620305, through a presolicitation notice. The procurement is intended to be negotiated with a single source, Hansome Energy Systems (Cage 51802), due to the government's determination that it is uneconomical to acquire the data or rights necessary to purchase this part from other sources. These fans are critical components for air circulation and blower equipment, and the government is not utilizing the policies for the acquisition of commercial items in this solicitation. Interested parties are encouraged to express their interest and capability to meet the requirement within 45 days of the notice, with the primary contact being Tonya L. Nearhood at (717) 605-1649 or via email at tonya.nearhood1@navy.mil.