This is a sole-source procurement for a flight-critical electrical/electronic part requiring Government source approval before award; only previously approved sources have been solicited. If you are not an approved source, you must submit all required Source Approval Information with your offer, as awards cannot be delayed for new-source approval. The Government intends to negotiate with only one source under FAR 6.302-1, and this notice is not a request for competitive proposals. No drawings are available, and the Government is not using commercial item acquisition procedures. Delivery is FOB origin, with no budget amount specified.