However, members of the Unite union could be set to walk out and shut down production at sites in Yeovil, Edinburgh, Newcastle, Luton and Basildon.
Nearly three thousand workers have been balloted for industrial action after rejecting below inflation pay offer of 3.2%.
Read More:
In 2024, Leonardo had revenues of nearly 18 billion euros and profits of over 1.5 billion euros.
Unite general secretary Sharon Graham said: “Our members are highly skilled and work on critical defence and aerospace systems yet are being short-changed by a company making billions.
“Leonardo needs to do the right thing, come back to the negotiating table and make an improved offer our members can accept.”
Unite national officer for aerospace Rhys McCarthy added: “Leonardo is incredibly wealthy and makes billions from UK government contracts. It is entirely unacceptable that it sees fit to make a poor pay offer to a highly skilled and valuable workforce.
“Unite is making it clear that unless Leonardo quickly returns to the negotiating table with an improved offer, they will see the anger of their workforce on the picket line.”
Leonardo has been contacted for comment.
The factory, on Crewe Road, has been a frequent target for protests relating to the Israel‘s ongoing military operations in Gaza.
Components made in the plant are used on the F-35 fighter jet, as well as the Apache attack helicopter.
Though there is no direct link, the company produces laser targeting systems for Lockheed Martin, which sells the jets and helicopters to Israel.
In July three women were charged under the Terrorism Act after allegedly driving a van into a perimeter fence at the Leonardo facility.
They are due in court on Thursday.
Previously activists had blockaded the entrance of the factory on several occasions in protest.