This hose fitting adapter has a male end for connecting to threaded pipe conforming to National Pipe Thread (NPT) standards and a barbed fitting for connecting to a hose. The barbed fitting on one end creates a tight seal on flexible or semi-rigid hose when used with a hose clamp or crimp sleeve or ferrule, and a male NPT connector on the other end connects to threaded pipe to form a tight, fixed connection. This fitting is made of stainless steel for corrosion resistance, ductility at high temperatures, and low magnetic permeability, easy to install and disassemble, good sealing performance, The pipe fitting can be applied to water, air, gas, oil and fuel.