South Park Brass Adapter 1.5" MNST x 1.5" MNPT

South Park Brass Nipple, 1-1/2" Male NST x 1-1/2" Male NPT Adapter

Brass, male nipple brass, hex firefighting hose adapter. 1-1/2" Male NST (National Standard Thread) x 1-1/2" Male NPT (National Pipe Thread).