The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking to procure 18 units of a vane axial fan under a presolicitation notice. The procurement involves the repair and modification of a specific part identified by NSN 7R-4140-014725743-KB, with the government indicating that the rights to use the necessary data for purchasing or repairing this part from other sources are not available. This equipment is crucial for air circulation applications within naval operations, and the government intends to negotiate with only one source due to the unique nature of the item. Interested parties should contact Joshua J. Seltzer at (215) 697-2849 or via email at joshua.j.seltzer@navy.mil for further details, with proposals due within 45 days of the notice publication.