This is a sole-source procurement for a flight-critical item that requires Government source approval prior to contract award, with only previously approved sources solicited. New sources must submit the required Source Approval Brochure information with their offer to be considered. The Government intends to negotiate with only one source under FAR 6.302-1, but all responsible sources may express interest and submit capability statements. Delivery is FOB origin, and the quantity is 5 units. Technical data and drawings are not available for this part.