I didn't think the DOT number had anything to do with the thread port. No, I don't have an actual cylinder.
This is the pin valve:
http://home.fuse.net/edge/edgepaintball/pin_valve.jpg
Does anybody have information on the threaded cylinder port that a paintball pin valve threads into?
I know it's a 5/8-18UNF-2B thread, but I need to know the dimensions for the o-ring surface of the port.
Thanks