The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of global positioning and other replacement parts, identified by NSN 7R-6605-017222741-RQ. The contract requires government source approval prior to award due to the flight-critical nature of the item, and only previously approved sources will be considered for this solicitation. Interested vendors must submit detailed technical data and documentation as outlined in the NAVSUP WSS Source Approval Information Brochures, as failure to provide the necessary information will result in disqualification. For inquiries, potential bidders can contact Nadia Govorushko at (215) 697-2813 or via email at NADIA.GOVORUSHKO@NAVY.MIL.