The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking qualified sources for the procurement of 10 units of a fuel tank for aircraft, identified by NSN 7R-1560-014467863-GF and reference number 320-4-49756-101. This procurement requires engineering source approval due to the flight-critical nature of the item, necessitating that only approved sources may submit proposals, as the technical data available does not support full and open competition. Interested parties must ensure compliance with the source approval requirements outlined in the NAVSUP WSS Source Approval Information Brochures and submit all necessary documentation with their proposals to be considered for award. For further inquiries, interested vendors can contact Bridget M. Murphy at (215) 697-5047 or via email at BRIDGET.M.MURPHY6.CIV@US.NAVY.MIL.