The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting proposals for the repair and modification of the MAIN ACTUATOR and other replacement parts. This procurement is a sole source requirement, 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 maintaining operational readiness and reliability in military aircraft systems. Interested contractors must submit their proposals, including necessary documentation as outlined in the NAVSUP WSS Source Approval Brochure, to Danielle Junod at danielle.m.junod.civ@us.navy.mil, with proposals remaining valid for a minimum of 120 days following submission.