UL 246A PDF

1.1 These requirements cover the construction and performance of non-threaded connections when used as outlets on fire hydrants and inlets on fire department connections in the nominal 4 and 5 inch sizes.

1.2 These non-threaded connections are intended for use:

a) For hydrant pumper connections;

b) To adapt from threaded hydrant pumper connections; and

c) With couplings on fire department hoses that comply with the dimensions specified in the National Fire Protection Association Standard for Fire Hose Connections, Spray Nozzles, Manufacturer’s Design of Fire Department Ground Ladders, Fire Hose, and Powered Rescue Tools, NFPA 1960.