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 (NSN 7R-1660-015101166-KB, REF NR 3314765-15) for aircraft air conditioning, heating, and pressurizing equipment. 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 submit their interest and capability statements within 45 days of this notice, as the government intends to negotiate with only one source under FAR 6.302-1. For further inquiries, contact Kathryn Elechko at (215) 697-2782 or via email at KATHRYN.ELECHKO.CIV@US.NAVY.MIL.