The Defense Logistics Agency is seeking qualified sources for the manufacture of Encoder Shaft Angles (ESA) to support the Patriot Missile System, with a total quantity of five units required. This acquisition is currently intended as a sole-source award to Raytheon under limited competition authority, though the government is interested in identifying other potential suppliers. The place of performance is Redstone Arsenal, Alabama. No budget amount is specified in this description. Interested firms must meet pre-qualification requirements and be capable of handling all aspects of manufacturing, supply chain management, and engineering services.