The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking to procure six units of a Receiver-Transmitter, identified by NSN 7R-5841-016691341-CB and part number 300A380-4. This procurement is classified as a sole source requirement, indicating that the government lacks sufficient data to contract with any source other than the current supplier, necessitating Government Source Approval prior to award. The items are critical for radar equipment used in airborne applications, and potential vendors must provide the necessary documentation as outlined in the NAVSUP WSS Source Approval Brochure to be considered for the contract. Interested parties should direct inquiries to Dana L. Scott at dana.scott@navy.mil, and must ensure compliance with the submission requirements to avoid disqualification.