Hex Nipple 3/8" MNPT with max working pressure of 15,000 PSI (1050 Bar)
 
Thread Size: Both Threads are 3/8"
Thread Type: All Threads are NPT Thread
Max Working Pressure: 15,000 PSI (1050 Bar)
 
Since all major brands of hydraulic tools tend to use 3/8" NPT size threads, these fittings can be used to connect hoses and other components to those systems with 3/8" size NPT fittings and max working pressures of 15,000 PSI. For example, these fittings might be used to install a gauge block or needle valve in line on a system.