The present invention relates to a coupling for a connecting a LNG nozzles to a LNG vehicle tank receptacle and their connection apparatus to a LNG vehicle tank for fueling.The invention comprises a double connection system to provides additional safety to a LNG Nozzle Locking Mechanism for being locked into a LNG receptacle on a vehicle tank, by combining two different locking mechanisms: one the so-called “collet type” locking mechanism with the locking handles, and two the valved receptacle and valved nozzle approach with the rotating handle.