Can I use the charmglow natural gas conversion kit on a Brinkmann 5 burner grill (model 810-9520-S).?

The grill is natural gas convertabile but my model number is not specified on the box of the conversion kit. I can't figure out what orifice size goes on the side burner. The one on it right now that is set up for propane has a number 59 on it, I dunno what that means, is that a size? Please help.