The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting proposals for the procurement of Receiver-Transmitter units, identified by NSN 7RH 5841 016691341 and part number 300A380-4. The contract involves a sole source requirement, necessitating Government Source Approval prior to award, as the Government does not possess sufficient data to contract with other sources. These units are critical for radar equipment used in airborne applications, and the procurement aims to ensure timely delivery, with a desired timeframe of 90 days or less. Interested vendors must submit their proposals via email to Dana Scott at dana.l.scott14.civ@us.navy.mil by the extended due date of March 18, 2025, and must include all required documentation as outlined in the NAVSUP WSS Source Approval Brochure.