The government plans to award a five-year Indefinite Quantity Contract for one National Stock Number item, a filter element, using commercial procedures. The contract will have a three-year base period and two one-year option periods, with award made on an all-or-none basis by CLIN to the best value offeror. The procurement is unrestricted and will be issued under FAR Part 12, with Inspection/Acceptance at Destination and F.O.B. Origin terms. Approved sources are limited to four specific manufacturers.