3 Inch Type DC Camlock Fitting – Brass cam and groove coupler &adapter made according to standard A-A-59326(original standard Mil-C-27487).Camlock couplings makes it easy and easy to make hose and equipment, hose and vehicle, hose extension / disconnect, etc., Which can save time and manpower. Because of its non-sparking characteristics, good corrosion resistance and long service life, brass camlock is more suitable for using in ship refueling system, storage tank, pump, fuel tank, etc.