The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support Mechanicsburg, is soliciting proposals for the repair and modification of sonar receiving sets. The procurement requires contractors to provide either a Firm-Fixed Price (FFP) for the complete repair effort or an Estimated Price, with specific details on turnaround times and repair capabilities. These sonar systems are critical for underwater sound equipment, emphasizing the importance of timely and quality repairs to maintain operational readiness. Interested contractors should submit their proposals, including all relevant pricing and repair details, to the primary contact, Jordan Neely, at JORDAN.D.NEELY2.CIV@US.NAVY.MIL or by phone at 717-605-8197, with a focus on meeting the required turnaround time of 184 days.