Window Arm Knob This knob is for all the round bar window operators Airstream has used from 1969 to the present. It was also used on some steps. Unlike the plastic version most Airstream dealers sell, ours is solid metal and chrome plated just like the originals and has a hex set screw for a firm attachment. We recommend using a small amount of thread tape or sealant like blue Loctite to prevent screw from loosening.
Wicked 50+ Best Modernized Vintage Campers https://topdecors.co/2017/05/29/50-best-modernized-vintage-campers/ If you are purchasing it from a dealer, they ought to be in a position to inform you. You can search at several dealerships online too, or you could try to find some ideas on online Airstream forums.