The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of 22 units of a flight-critical mounting flange, identified by NSN 7R-1680-015858787-YR. Due to the specialized nature of this item, which is categorized under miscellaneous aircraft accessories and components, only sources previously approved by the Government will be considered for this contract, as the necessary technical data for competitive solicitation is not available. Interested vendors must submit detailed information regarding their capability to produce the item, including any prior source approval requests, by the specified deadline to ensure consideration for the award. For further inquiries, potential bidders can contact Dina M. Wojciechowski at (215) 697-1219 or via email at DINA.M.WOJCIECHOWSKI.CIV@US.NAVY.MIL.