Coleman Lantern Parts Size Of Neoprene Rubber Washer Gasket For Propane Lantern?

Size of neoprene rubber washer gasket for propane lantern? - coleman lantern parts

What washer / board should replace that in a Coleman-type gas-burner propane? It is the board that is in the lantern of the screws in a small bottle of propane. I measured an old, worn one of the 22 mm outer diameter of 10 mm inner diameter. This should be a universal norm. Is there a website that offers an official answer to this question?