The Department of Defense, through the Defense Logistics Agency (DLA Aviation), is seeking proposals for the procurement of 7 units of the NSN 1660-01-572-0894, Heater, Aircraft, specifically for the Blackhawk helicopter models UH-60A, UH-60L, HH/UH-60M, and UH-60V. This procurement is critical for maintaining operational readiness and ensuring the functionality of aircraft heating systems, although the government does not currently have an approved technical data package for this item. Interested manufacturers, other than the approved source Sikorsky Aircraft Corporation, must submit a complete source approval package to be considered for this firm-fixed price contract, with an estimated solicitation issue date of December 26, 2025, and a closing date of January 25, 2026. For further inquiries, potential bidders can contact Samuel Kogi at 445-737-9377 or via email at Samuel.Kogi@dla.mil.