This Part is disabled and cannot be used.
It looks like this Part has been superseded by LEGO Part 32123b Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced.
Click on a colored part below to see the Sets and MOCs that use part 32123 Technic Bush 1/2 Smooth [Undetermined Axle Hole Type] in that color. You can find an overview of all LEGO Colors here.
If a color is missing, it probably needs to be added to a Set Inventory.
This part has been used by MOCs in the following colors but not officially released.