The Defense Logistics Agency is seeking sources for the manufacture of NSN 5845-01-643-2316, a BEACON, SONAR, with two approved suppliers. Responses to this market research are due by June 3, 2026, and will help determine whether the procurement is set aside for small businesses or competed openly. The estimated requirement ranges from a minimum of 135 to a maximum of 521 units, with unit prices established at contract award. No drawings, technical orders, or qualification requirements are available, and no solicitation currently exists. The location for performance of services is not specified.