The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking to procure 20 units of the discharge valve for aircraft air conditioning, heating, and pressurizing equipment, identified by NSN 7R-1660-015101166-KB and reference number 3314765-15. This procurement requires engineering source approval to ensure the quality of the part, necessitating that the acquisition or repair be conducted by approved sources with unique design capabilities and manufacturing knowledge. Interested parties are encouraged to express their interest and capability to meet the requirements within 45 days of this notice, with all proposals being evaluated to determine whether a competitive procurement will be conducted. For further inquiries, interested vendors can contact Kathryn Elechko at (215) 697-2782 or via email at KATHRYN.ELECHKO.CIV@US.NAVY.MIL.