This is a sole-source opportunity for 4 units of a specific part (NSN 7H-6685-013493320-X5) to be delivered to Norfolk, VA. The government does not own the technical data and cannot reverse engineer the part, making it uneconomical to seek additional sources. Interested parties must submit proposals within 45 days (or 30 days under an existing BOA) to be considered. Award requires the offeror or manufacturer to meet qualification requirements at the time of award. No budget amount is specified.