The Department of Defense, through the Naval Sea Systems Command (NAVSEA), is preparing to issue a presolicitation for the production of TB-37A Multi-Function Towed Arrays (MFTAs) and associated equipment. The procurement includes up to seventy MFTAs, one hundred-fifty Array Interface Units, eighty-five Tow Cables, seventy Electro-Optical Slip Rings, seventy Drogues, and various spare materials, along with engineering support totaling up to 75,000 hours. This equipment is critical for underwater sound detection and navigation, and the contract will be awarded without full and open competition to Lockheed Martin Corporation, the only qualified source, with a base year and four option years planned starting in FY25. Interested subcontractors should reach out to Lockheed Martin directly, and for further inquiries, contact Justin Rose at justin.p.rose6.civ@us.navy.mil or Stuart Burman at stuart.burman2.civ@us.navy.mil.