I managed to snap the brass paint inlet nozzle - the tube that connects the cup with the handle - on a new SP-31000 LVLP spray gun. I received a timely response from California Air Tools saying the only parts available are "needle kits". This was the first time I used the gun. I'll have to find a machinist to make a new part - probably cost more to have a part made than a new spray gun. I'm bummed.
Does anyone know if these tubes are standardized across brands?