5040 may refer to:
5040 (number), a number in the 5000s range A.D. 5040, a year in the 6th millennium CE 5040 BC, a year in the 6th millennium BC 5040 Rabinowitze, an asteroid in the Asteroid Belt, the 5040th asteroid registered Hawaii Route 5040, a state highway SIG GL 5040, a 40 mm grenade launcher
See also