This opportunity is for the acquisition of 4 units of NSN 7H-4820-014090802-L1, a Level 1 item that must be sourced from approved suppliers only. Performance is required at the Portsmouth Naval Shipyard in Kittery, ME. The government lacks the data or rights to repair this part from additional sources and has deemed it uneconomical to acquire or reverse engineer that data. The contract will be awarded only to offerors with an inspection system conforming to MIL-I-45208A, certified by a joint DCMA/NAVSUP WSS survey team. Proposals will be considered if received within 45 days of the synopsis publication.