Ice-o-matic parts manual 17.0 gc series-gc300 gc550 air and water cooled -- page 2 -- iten code 501
A direct expansion refrigerating cooling element where the liquid refrigerant boils or evaporates and absorbs heat.
NSN 6610-00-801-4652
NSN 5930-01-246-7582
NSN 6320-01-492-1976
NSN 5905-01-642-7770
NSN 6620-01-468-3826
NSN 5960-01-238-5046
NSN 6320-01-150-5378
NSN 6620-01-432-7032
NSN 4140-01-442-8646
NSN 2925-01-448-2880
NSN 5960-01-278-2852
NSN 6650-01-399-8552