Depends on the tongue weight of the trailer, the rating of the receiver, and the vehicle you are pulling with.
For example, a 5k trailer will have 600+lbs of tongue weight. Most 1/2 ton trucks have class 3 hitches standard, which are only good for 5-600lbs weight carrying (dead tongue weight) but 1k when using a wd hitch. So the trailer may exceed the hitch rating on a 1/2 ton truck without a wd hitch. As well, 600+lbs hung off the back of a light duty truck may reduce the weight on the front steer axle enough to may the drive unstable.
A 3/4 ton truck or better, which come with higher rated hitches and are heavier to start, can handle 600+lbs of tongue weight without a wd hitch.