400XF series fittings have a strong structure designed for surge pressures and spikes, high impulses, and vibration. They also have great resistance to fatigue. The universal ferrule can be used either with 2 wire braided hose (in some circumstances) or 4 spiral hoses. These heavy-duty fittings are used for industrial and mobile hydraulics. They are ideal for construction, mining, petroleum, and earthmoving equipment. 400XF series fittings can be identified by the X located on the ferrule. When making hose assemblies using 400XF series fittings, make sure that the hose you are using is designed to work with the 400XF series hose fittings. Thread options: Code 61, Code 62, NPT, FJX, ORFS