I recently bought a 1991 WARRIOR 21RL

Our Itasca/Winnebago tables have a metal tube, crimped both ends, for the pedestal, one for small tables and two for larger ones, and a socket in the floor and a raised one on the bottom of the table. I would you could fine them in winnebago catalog.
That was in our 2002 Itasca Spirt 24V.

Dusty