The Department of Defense, through the Defense Logistics Agency (DLA) Aviation at Philadelphia, PA, is seeking proposals for the procurement of two engine radiators, identified by NSN 7R-2935-016948891-SX and reference number 01-42921. This requirement is for new spare parts, and due to the flight-critical nature of the item, government source approval is mandatory prior to contract award, with no drawings available for this procurement. Interested vendors must provide comprehensive documentation as outlined in the NAVSUP Weapon Systems Support Source Approval Information Brochures, and failure to submit the required data will result in disqualification from the award process. For further inquiries, interested parties can contact Thomas Kuhnle at (215) 737-4024 or via email at THOMAS.KUHNLE@DLA.MIL.