The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting proposals for the repair and modification of rotary pumps under the title "43--PUMP, ROTARY, IN REPAIR/MODIFICATION OF." This procurement is a sole source requirement, necessitating that contractors submit proposals that include either a firm-fixed price or time and materials pricing, along with estimated repair costs, as the government lacks sufficient data to contract with other sources. The rotary pumps are critical components used in various defense applications, and the contractor must adhere to strict quality control and inspection standards as outlined in the solicitation. Interested parties should direct inquiries to Katlyn Galetto at KATLYN.M.GALETTO.CIV@US.NAVY.MIL or by phone at 215-697-6549, and proposals must remain valid for a minimum of 120 days following submission.