The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking procurement for an extension assembly, main, identified by NSN 7R-1615-010745151-VH and reference number 70351-08186-043, with a quantity of 2 each. This procurement falls under the category of helicopter rotor blades, drive mechanisms, and components, highlighting the critical nature of these parts for military aviation operations. Interested vendors should note that delivery is required FOB origin, and for further inquiries, they can contact Lauren N. Phillips at (215) 697-6566 or via email at lauren.n.phillips@navy.mil.