The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking to procure four units of a temperature controller as part of a repair and modification initiative. The procurement involves the National Stock Number (NSN) 7R-1660-009688208-BE, with a Technical Data Package (TDP) version 001, indicating the specific requirements for the items needed. These temperature controllers are critical components used in aircraft air conditioning, heating, and pressurizing systems, underscoring their importance in maintaining operational efficiency and safety. Interested vendors can reach out to Joseph K. Pace at (215) 697-1255 or via email at JOSEPH.K.PACE8.CIV@US.NAVY.MIL for further details regarding this presolicitation opportunity.