This cap is used for refueling Mirage 3 and 5 aircraft. Includes a chain to tie to the tank structure to prevent it from falling into the fuel tanks during refueling.

This cap is completely new, good for a real aircraft and good for collectors of Mirage parts.
This item is familiar to any ground crew member of a Mirage aircraft who had to refuel thousands of liters of fuel in any air force that operated Mirage aircraft.