Recently returned from a trip to Lake Chautauqua KOA in New York, put the slide out and found this on the floor in between the dinette and the stove. It appears to be part of a broken plastic disc. It has teeth on it (which I think are visible in the attached pictures. I have a guess as to what it is, but want some more experienced TT owners to chime in before I say--I don't want to lead anyone down a rabbit-hole to nowhere like I do when I take my car to the garage for repairs.
First picture shows the part with the teeth underneath--the other two are teeth upward. Any ideas would be appreciated