Yes, that includes the tube. The bottlehead bases are all 3.5", I have 4 Raytheon 0D4W's they are all 3.38" excluding pins, the socket is flushed mounted, then the rubber feet, the ones I have are approx. .25" to .3125". My FPIII uses 3 6CG7 tubes, I could not stand the look of the 0D4W, but it is a very good tube.
Lee