The Department of Defense, through the Defense Logistics Agency (DLA Aviation), is seeking contractors for the procurement of Duct Assembly, Bleed for the C/KC-135 aircraft. This opportunity involves an indefinite quantity contract (IQC) for a base period of five years, with an estimated annual quantity of 12 units, and requires delivery within 175 days after receipt of order. The Duct Assembly is a critical airframe structural component, and contractors must be certified by the Department of Defense to access the necessary unclassified data. Interested parties can find the solicitation on the DLA Internet Bid Board System (DIBBS) around August 26, 2025, and should direct inquiries to Ryan Loeffelholz at ryan.loeffelholz@dla.mil or by phone at 804-279-1452.