The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of 16 units of a flight-critical antenna, identified by NSN 7R-5985-014726128-FW and reference number 19-440P15. Due to the critical nature of this item, the procurement requires Government source approval prior to contract award, as the necessary data for competitive acquisition is not available, and only previously approved sources will be considered. Interested vendors must submit detailed technical data and source approval information with their proposals, and offers lacking the required documentation will not be considered. For further inquiries, interested parties can contact Dina M. Wojciechowski at (215) 697-1219 or via email at DINA.M.WOJCIECHOWSKI.CIV@US.NAVY.MIL.