This requirement is for 3 units of a flight-critical aviation item, with delivery FOB origin. The government does not own the data rights needed to purchase or repair the part from additional sources, and reverse engineering is uneconomical, so only previously approved sources are solicited. New sources must submit a source approval request with the required technical data per the NAVSUP WSS brochure; offers failing to provide all required documentation will not be considered. Interested parties may express their interest and capability to satisfy the requirement with a commercial item within 15 days of this notice.