This requirement is for a flight-critical part that requires Government source approval prior to contract award. Only previously approved sources have been solicited; alternate sources must qualify under strict engineering procedures, and approval typically cannot be completed in time for award. If you are not an approved source, you must submit all required source approval information with your proposal or your offer will not be considered. The item is being acquired on a delivery FOB origin basis, with a quantity of 40 units. No budget amount or specific performance location is provided.