The Defense Logistics Agency (DLA) is seeking sources for the procurement of spare parts for the Common Sensor Payload (CSP), specifically the AN/AAS-53A model, with the National Stock Number (NSN) 5855-01-641-5099. The procurement aims to support the CSP, which is a multi-sensor Electro-Optic Infrared Sensor designed for reconnaissance, intelligence, surveillance, and target acquisition, providing capabilities for day/night operations in various weather conditions. Interested vendors must demonstrate their ability to manufacture or supply the required components, including specific parts such as detectors and cooling units, and are encouraged to submit documentation detailing their qualifications and past performance. Responses are due by May 8, 2025, and should be directed to the primary contact, Dalton Butterfield, at dalton.j.butterfield.civ@mail.mil, with additional information available through the secondary contact, Philip Winter, at philip.j.winter.civ@army.mil.