The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support Mechanical, is seeking to procure mating ring assemblies and similar replacement parts. The procurement involves a quantity of 144 units of National Stock Number (NSN) 7H-2010-011117805, with delivery required to DLA Distribution Norfolk, Virginia. These components are critical for ship and boat propulsion systems, underscoring their importance in maintaining naval operational capabilities. Interested vendors are encouraged to express their interest and capabilities within 45 days of this notice, and should direct inquiries to Vince Molesky at (717) 605-3353 or via email at vincent.molesky@navy.mil.