The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking procurement for the repair or modification of a regulating valve, identified by NSN 7R-4820-016478794-RQ. The requirement includes a quantity of four units, with delivery terms set to FOB Origin, indicating that the buyer will pay for shipping from the seller's location. These valves are critical components in various naval applications, ensuring proper fluid regulation in systems where precision is essential. Interested vendors can reach out to Michael J. Brown at (215) 697-3765 or via email at MICHAEL.J.BROWN43@NAVY.MIL for further details regarding this presolicitation opportunity.