patsews

I have looked everywhere for a replacement for the yellow plastic spacer that goes on the back of the cutter between the metal washer deal and the screw on back for my Olfa 45mm Ergonomc rotary cutter. It managed to disappear when I was changing out my blade. I have looked on the internet and there are none of these to be found. Most answers are "just buy a new cutter". I have a perfectly good one, just need the part for it. Has anyone had this to happen and if so what did you use to replace it?

Thanks,
Patsews