The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of two units of a flight-critical Power Control Assembly, identified by NSN 7R-1680-017163760-RQ. This procurement requires government source approval prior to contract award, as the technical data available does not support full and open competition, meaning only previously approved sources will be considered. Interested vendors must submit detailed information as outlined in the NAVSUP WSS Source Approval Information Brochures, and failure to provide the necessary documentation will result in disqualification from the award process. For inquiries, potential bidders can contact Nadia Govorushko at (215) 697-2813 or via email at NADIA.GOVORUSHKO@NAVY.MIL.