The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support MECH, is seeking to procure 54 units of the Entrance Unit Assembly and similar replacement parts, identified by NSN 7H-1005-012307383. The procurement is based on a presolicitation notice, indicating that the government does not possess the necessary data or rights to purchase or contract repair of this part from alternative sources, making it uneconomical to reverse engineer. These parts are critical for military applications involving guns up to 30mm, and interested vendors must meet qualification requirements at the time of award. For further inquiries, interested parties can contact Logan Mann at (717) 605-1381 or via email at LOGAN.W.MANN.CIV@US.NAVY.MIL.