The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of circuit card assemblies and other replacement parts necessary for repair and modification. This procurement involves a specific National Stock Number (NSN 7R-5998-016407207-SX) with a quantity of five units, and it is critical that the selected source has prior government approval due to the flight-critical nature of the item. Interested vendors must provide detailed technical data and documentation as outlined in the NAVSUP Source Approval Information Brochures, as failure to do so will result in disqualification from the award process. For further inquiries, interested parties can contact Bridget M. Murphy at (215) 697-5047 or via email at BRIDGET.M.MURPHY6.CIV@US.NAVY.MIL.