G80B couplings are economically priced and are commmonly found on stand-by and cabinet fire hoses. They feature pin lugs on the female coupling only.
See Valve Section For Fire Hydrant & Forestry V Alves: Thread Price Number Size Each Thread Price Number Size Each, PDF, Pipe (Fluid Conveyance)
See Valve Section For Fire Hydrant & Forestry V Alves: Thread
G80BF-150-181 Green Line Hose & Fittings
See Valve Section For Fire Hydrant & Forestry V Alves: Thread
1-1/2 x 1-3/4 Brass Fire Hose Coupling - Female NPSH G80BF-150-175 - Prairie Bearing & Bolt