This procurement is for 35 units of NSN 1H-2040-010373691-L1, with delivery to Portsmouth Naval Shipyard in Kittery, Maine. The government intends to contract with only one source, as it does not own the data or rights needed to purchase from other sources, and reverse engineering is uneconomical. Only approved sources are eligible, and offerors must have an inspection system conforming to MIL-I-45208A or equivalent, certified by a joint DCMA/NAVSUP team. Interested parties may express their interest and capability, but this is not a request for competitive proposals. No budget amount is specified.