steering stem wiggle

What number are the steering stem bushings in the part schematic posted above? I have the same wiggle definitely coming from the upper steering stem clamp. Could i just remove the clamp and lightly sand both surfaces so that is clamps the stem slightly more?
look on https://www.rockymountainatvmc.com/oem-schematic/4
under steering oem parts:)
example:
steering stem.png
 
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