2-1/2 in. (63.5 mm) Female NST x 2-1/2 in. (63.5 mm) Male NPT Brass Swivel Adapter secures to threaded fittings with one Female NST swivel and another Male NPT end. Machined from durable cast-brass, this adapter resolves mismatches between different fire hose thread standards.
The female end of this adapter is a pin-lug swivel with a synthetic washer, designed for easy of tightening and loosening with a spanner wrench for a leak-tight seal.