5000PSI MAX PRESSURE No Air Loss Chuck (Nitrogen & Air), 1/8" Male NPT - This NITROGEN / AIR / Gas Charging Chuck / filling valve is designed for charging shocks, tires, struts, accumalators. This fitting will allow you to accurately fill and pressurize any system utilizing a Schrader filling valve. The tool depresses to open the valve core in the stem of a Schrader stem valve which is under constant pressure. When the tee handle on this filling adapter is turned, it raises and lowers the core depressor pin. This depresses or opens the core in the valve and allows Air/ Gas to pass thru. Brass Body, Stainless Internal Parts Corrosion resistant, Heavy duty long lasting service life 5000 PSI Maximum Pressure 1/8" Male NPT Fits stem thread sizes .305-32 and 5/16-32 Supply line connection 90 degrees to axis of the valve Max torque to valve mouth is 50 in/LBS. NOTE: THIS IS NOT AN ON/OFF VALVE - YOU MUST HAVE A CONTROL UPSTREAM. YOU CONNECT WITH THE HEXAGAON WRENCH FLAT, THEN FOLLOW WITH TURNING T- HANDLE TO ENGAGE SCHRADER. THIS IS PRECISION PRODUCT AND PRODUCED TO THE HIGHEST STANDARDS SUCH AS AIRCRAFT AND AVIATION PURPOSES