The Defense Logistics Agency is conducting market research to identify potential sources for manufacturing four items—a junction box and three circuit card assemblies—used in the Patriot Missile Weapon System, with performance expected at Redstone Arsenal, Alabama. The technical data for these parts is not available for competitive solicitation, so acquisition is currently limited to a small number of responsible sources under FAR 6.302-1. Interested businesses, including 8(a), small, disadvantaged, service-disabled veteran-owned, HUBZone, and women-owned small businesses, must meet prequalification requirements to be eligible for future awards. Firms capable of producing these items are encouraged to seek source approval by contacting the contract team, and foreign firms must process requests through their respective embassies. This notice is for planning purposes only and does not constitute a solicitation or commitment by the government.