The government intends to solicit and negotiate with only one source for the repair or purchase of a specific part (quantity 50) due to lack of data rights and uneconomical reverse engineering. Interested parties may express capability or submit proposals, with submissions considered within 45 days (or 30 days under an existing BOA) from publication; commercial item interest must be identified within 15 days. The delivery location is Lockheed Martin Corporation in Moorestown, NJ. The government may consider responses only to determine whether to compete the requirement, and award requires meeting qualification requirements. No budget amount is specified in this notice.