This is a proposed long-term, sole-source contract for six specific NSNs to support various weapon systems, with Lockheed Martin identified as the intended awardee. The contract will have a five-year period of performance. It is structured as a Fixed-Price, Indefinite Delivery Requirements Type Contract with Prospective Price Redetermination. While items are identified as sole source, responses from other potential suppliers are required by a specified date and must include evidence of the ability to supply the items.