The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support MECH, is seeking to procure three units of a Level Indicator (NSN 7H-6680-015125209) under a presolicitation notice. The procurement is for a specific part that the Government has determined cannot be economically sourced from multiple suppliers due to the lack of ownership of necessary data and rights, making reverse engineering unfeasible. This equipment is critical for measuring liquid levels and mechanical motion, which are essential functions in various defense applications. Interested parties must respond within 45 days of the notice publication, and all inquiries should be directed to Prabit Dhital at (717) 605-4358 or via email at PRABIT.DHITAL@NAVY.MIL.