I recall the non GFI RV outlets (all the others) are a bit strange when compared to conventional outlets you buy at a home improvement center. I would think it is best to replace all outlets and use the screw terminals, not the push-in blade features. But maybe you will also need an outlet box. I forget exactly what's there, just recalling it's not house-standard.
They are standard "shallow box" outlets. Just not as thick front to back so they fit inside shallow outlet boxes.