The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking to procure four units of a critical computer digital component, identified by NSN 7R-7021-015797665-CB. This procurement requires engineering source approval to ensure the quality and reliability of the part, which is essential for flight operations, and only approved sources will be considered for the contract. Interested vendors must demonstrate their capability to meet the stringent qualification requirements and submit proposals within 45 days of this presolicitation notice, with the primary contact for inquiries being Gina P. Sassane at gina.p.sassane.civ@us.navy.mil. The contract will be awarded based on the qualifications of the offeror and the compliance with the necessary technical data requirements.