The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking qualified sources for the repair and modification of a Receiver-Transmitter, identified by NSN 7R-5821-015855355-P8. The procurement involves a quantity of three units, with delivery terms set to FOB Origin, and requires engineering source approval to ensure the quality of the part, as it is flight critical. Interested vendors must be approved sources or provide detailed documentation for source approval, as the item’s unique design and technical data are not readily available to the Government. Proposals must be submitted within 45 days of this notice, and interested parties can contact Dina M. Wojciechowski at (215) 697-1219 or via email at DINA.M.WOJCIECHOWSKI.CIV@US.NAVY.MIL for further information.