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 5835-00-339-3020
NSN 5960-00-948-6012
NSN 5925-00-349-7046
NSN 6110-01-546-4685
NSN 6220-00-766-7580
NSN 5905-00-080-9917
NSN 4140-01-150-0740
NSN 5996-00-034-4779
NSN 5895-01-497-2191
NSN 5905-01-209-0959
NSN 5985-00-758-8322
NSN 5915-01-100-4105