I found a DIY kegerator conversion kit online, but all the parts you will need can also ... black rubber washer, beer line, keg (Sankey) coupler, air line, and a double-gauge CO2 regulator.

Besides actually drinking the beer, this part is the most fun ... into the nut and then screw the nut onto the top of the keg coupler. Tighten with a wrench. Install the drip tray about a foot ...