What is this part?

[Dave50cub]

In going through a box of stuff from an auction, I came across a steel part, which I think may be from some IH machine, judging from the red color and what looks like the IH insignia, but it is a little hard to see the insignia so I'm not sure. There is a part number stamped into it, as follows: TB 496. The letter B is a little unclear, it might be an 8.

The piece is round, like a collar from something. It has a bolt threaded into the side which would hold it firmly onto whatever it fits. I could give exact dimensions, but it is in the barn right now and I figured someone might be able to identify it just from the part number. Any ideas what it is?

[John *.?-!.* cub owner]

a picture would be most helpful.

[Bigdog]

Sounds like a locking collar from a cultivator pressure rod.