Here is my solution. Using window foam tape, 1/4" thick and 1/2' wide I cut a segment 3 3/8" long. With the sticky side on the outside diameter I placed it inside the bezel. The corresponding surface on the regulator is dome shaped and when assembled the bezel is held against the handle. The original "washer" was 13/32" thick so the thickness in this arrangement it is 1/2", but the material compressed so easily this is not a problem.
I am not sure this was a problem to begin with but seems to secure the bezel from rattling.
Kent
Last edited by Lightholder's Dad; 09/10/202510:25 PM.