Brass Adapter (on One Way Valve): 1/4 inch NPT-O2
Emergency Valve Outlet: 9/16 -18 inch UNF 2A (USA “standard scuba”)
Small LP Ports 3/8 inch-24 UNF 2B
Large LP Ports 1/2 inch -20 UNF 2A
The most often asked for thread sizes?
Adding non authorized coatings to a fiberglass shell will condemn the shell and void the warranty on the helmet. There are currently no approved coatings for a fiberglass shell. A list of authorized coatings have been approved for our stainless steel shells, however applying these coatings will void the warranty on the helmet. Please contact your Kirby Morgan Dealer for more info.
Can I paint, coat or add any surface covering to the shell of my Kirby Morgan helmet?
