What is a goodman air-condition model number aruf486016ba in tonnage?

4 to 5 tons depending on outside unit capacity, orifice size and blower speed. 48 in the model numbers represents 48000 BTUH, 60 means 60000 BTUH, 1 ton = 12000 BTUH. Goodman changed models a few years ago to allow for inventory reduction so this model will provide with 4 or 5 tons depending on how it is matched.