The Department of Defense, through the Defense Logistics Agency Aviation, is seeking contractors for the procurement of Duct Assembly, Air C, specifically for the C-5 aircraft. This opportunity involves an indefinite quantity contract (IQC) for a base period of five years, with an estimated annual quantity of 15 units, and requires delivery within 365 days after receipt of order. The Duct Assembly is critical for aircraft air conditioning, heating, and pressurizing systems, ensuring operational efficiency and safety. Interested parties must be certified by the Department of Defense to access unclassified data and can find the solicitation on the DLA Internet Bid Board System (DIBBS) around July 22, 2025; for inquiries, contact Ryan Loeffelholz at ryan.loeffelholz@dla.mil or call 804-279-1452.