The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking contractors for the repair and modification of valves under the solicitation titled "16--VALVE, ECS, IN REPAIR/MODIFICATION OF." The procurement involves the supply of 44 units of National Stock Number (NSN) 7R-1660-016686580-P8, with a Technical Data Package (TDP) version 001, and requires delivery on a Free on Board (FOB) origin basis. These valves are critical components used in aircraft air conditioning, heating, and pressurizing systems, highlighting their importance in maintaining operational readiness. Interested parties should contact Tia Johnson at (215) 697-5271 or via email at TIA.JOHNSON@NAVY.MIL for further details regarding this presolicitation opportunity.