A fitting (260) with a dual locking swaging mechanism includes a projection to be inserted into the open end of an elastomeric tube (262). A ferrule (280) is connected at one end thereof to a body portion of the fitting and is swaged (286) over the tube to hold the tube onto the projection inserted into the tube. The tube is thereby held to the fitting by both frictional engagement of the tube with the projection and the ferrule and by the connection of the ferrule with the main body of the fitting.