The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting proposals for the procurement of control monitors for air systems. This requirement is classified as a sole source procurement, necessitating Government Source Approval prior to award, as the Government lacks sufficient data to contract with sources other than the current supplier. The items are critical for Foreign Military Sales (FMS) spares, emphasizing their importance in supporting defense operations. Interested vendors must submit the necessary documentation as outlined in the NAVSUP WSS Source Approval Brochure, which can be accessed online, and should direct inquiries to Kate Schalck at 215-697-1020 or via email at kate.n.schalck.civ@us.navy.mil.