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 the Turret FLIR Unit, identified by NSN 7R-1680-016715197-YR, with a quantity of 81 units required. This procurement necessitates engineering source approval due to the flight-critical nature of the item, which mandates that only approved sources with the requisite design capability and manufacturing knowledge can participate in the bidding process. Interested parties must submit detailed proposals that comply with the NAVSUP WSS Source Approval Information Brochures, as offers lacking the necessary documentation will not be considered. For inquiries, potential bidders can contact Marisa L. Tetkowski at (215) 697-2644 or via email at MARISA.TETKOWSKI@NAVY.MIL.