Adapter Nut (10050167): 1/4 A Bulb PSB SERIES DIRECT MOUNT PRESSURE SWITCH The Murphy 0-200 PSI Surface

The Murphy 0-200 PSI Surface Mount Swichgage Instrument with Square Case 45APE-A-200 is a mechanical gage for pressure indication

This model has built-in electrical switches for tripping alarms and/or shutdown devices

The Murphy 760A-30-12 Magnetic Switch is used for distributor ignition or diesel engines

Test Feature (allows for test of float and switch) (15700836)

Ideal for use on engines

Adapter Nut (10050167): 1/4 A Bulb PSB SERIES DIRECT MOUNT PRESSURE SWITCH The Murphy 0-200 PSI SurfaceThe standard threading size at the end of a temperature gauge capillary tube is 5 8 18 UNF (Union Nut). The inner threads of this 1 4 A Bulb Adapter Nut measure 5 8 18 UNF, to make the correct connection to the stationary end of the temperature gauge capillary tube. The outer threads measure 1 4 18 NPT allowing you to make a non standard connection to match your application, which is generally a connection to the coolant bath of your engine block.