The Department of Defense, through the Defense Logistics Agency (DLA) Aviation at Huntsville, AL, is seeking to procure Indicator Antennas under a presolicitation notice. The contract will be an Indefinite-Delivery, Indefinite Quantity (IDIQ), Firm-Fixed Price arrangement for a minimum of 17 and a maximum of 45 units of the Indicator Antenna, specifically part number 11441552, which is integral to the MD-6 Patriot Missile System. This acquisition is sole-sourced to Electromech Technologies, LLC, due to the lack of available technical data or manufacturing knowledge to qualify alternative sources, and it is subject to export control regulations. Interested parties should direct inquiries to Brylee Malone at brylee.malone@dla.mil, and must ensure compliance with the United States/Canada Joint Certification Program (JCP) for access to export-controlled data.