This is a presolicitation notice for a fixed-price, indefinite delivery contract to supply a specific valve for military depot stock replenishment. The required delivery is 270 days with a First Article Test (FAT) waiver or 375 days with FAT, and performance is FOB Origin with Inspection and Acceptance at Origin. The contract will have a three-year base period, and the solicitation is not set aside for small businesses. The item is a Critical Safety Item requiring higher-level quality and a Contractor First Article Test. Evaluation will consider price, past performance, and delivery, with potential use of online reverse auctioning for price discussions.