I am trying to remove the bearing and shaft from my Cabrio washing machine. There is a notched hard plastic nut that has been a real challenge to a remove. It looks like a smaller spanner nut than most washers have, but its made of plastic (see pic below of nut circled in yellow) unlike the galvanized spanner nuts on other washers. I made an attempt at removing this with a pipe wrench, the spanner tool below (too big), and a hammer and screwdriver to no avail. Is there a special tool to remove this nut??? I would greatly appreciate any suggestions?