The Naval Air Warfare Center, Aircraft Division intends to negotiate a sole source contract with Applied Companies, the Original Equipment Manufacturer, for the procurement, fabrication, and delivery of Electronics Cooling Water (ECW-50) subsystems in support of the U.S. Navy's AN/SPN-50 Shipboard Air Traffic Control Radar System. Applied Companies is the only source qualified to meet Navy requirements, including testing for shipboard installation per NAVSEA standards. The acquisition is planned under the authority permitting only one responsible source. This notice is not a request for competitive proposals, though the government will consider responses to determine whether competition may be possible.