The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support MECH, is seeking to procure two sonar projectors under a presolicitation notice. The procurement involves the repair and modification of a specific part identified by NSN 7H-5845-015035473, with the government indicating that it does not own the necessary data or rights to purchase or contract repair from other sources, making it uneconomical to reverse engineer the part. This equipment is critical for underwater sound applications, and the government intends to negotiate with only one source under FAR 6.302-1, although all responsible sources may express their interest and capability within 45 days of the notice. Interested parties should contact Stephen A. Knox at (717) 605-6805 or via email at STEPHEN.A.KNOX.CIV@US.NAVY.MIL for further details.