The model number of these mini momentary push-button switches is R13-507, they are 16mm thread diameter. and voltage/current rating is AC 250V/3A AC 125V/6A. The green press button is 13mm diameter, it has two poles and 9.5mm distance between them. Please see the diagram for more details of this switch.
|Voltage/current||AC 250V 3A/ AC 125V 6A|