The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting proposals for the procurement of Control Units for Auxiliary Power Units (APUs). This procurement is classified as a sole source requirement for Foreign Military Sales (FMS) spares, necessitating Government Source Approval prior to award, as the Government does not possess sufficient data to contract with other sources. The items are critical for aircraft operations, and interested vendors must submit the required documentation as outlined in the NAVSUP WSS Source Approval Brochure to be considered for the contract. For inquiries, potential bidders can contact Kate Schalck at 215-697-1020 or via email at kate.n.schalck.civ@us.navy.mil.