What is the meaning of the letter "Z" at the end of a part number?
A "Z" at the end of a part number usually indicates that something is missing. For example, if you add a "Z" to the part number of a free plug (FGG, FFA) then the plug will be equipped with a nut for fitting a bend relief. The bend relief itself must then be ordered separately. A "Z" at the end of a part number for a panel-mount receptacle (EGG, ERA) often removes the washer and nut from the product so that you can use your own hardware.