The Department of Defense, through the Defense Logistics Agency, is seeking proposals for the procurement of 260 hydraulic cylinder blocks, identified by NSN 1650-01-632-2731, with an estimated issue date of February 11, 2025, and a closing date of March 13, 2025. These cylinder blocks are critical components used in pumps and motors for aircraft applications, specifically for the E3, E8, and KC135 models. The delivery of the required units is expected on or before November 14, 2026, and interested parties are encouraged to contact the primary buyer, Chrissy Turnage, at christine.turnage@us.af.mil for further inquiries. This acquisition is not set aside for small businesses, and the government intends to negotiate with limited sources, particularly Hamilton Sundstrand Corporation.