The Department of Defense, through the Army Contracting Command - Rock Island, is soliciting bids for the procurement of 6061T6 Aluminum Round Bar, specifically 12 inches in diameter and 84 inches long, for use in the M48A1 Large Filter Production at Pine Bluff Arsenal. The contract will be a three-year Firm Fixed Price Indefinite Delivery Indefinite Quantity (IDIQ) agreement, requiring a minimum of 40 and a maximum of 420 units, with strict adherence to material standards including AMS-QQ-200/8 and ASTM-B221. This procurement is critical for manufacturing parts essential to Army operations, and interested small businesses must submit their quotes by 3:00 PM CST on December 15, 2025, to the designated contacts, Heather Johns and Bethany Carbajal. A Certificate of Conformance is required for each order, and payment will be processed via Wide Area WorkFlow (WAWF).