The product is available.
Used Yamaha Nut, propeller, no 90171-10M01. N & J Propellers
Should fit 6C / 8C / 9.9D / 9.9F / 15D / 15F & F8C / F9.9B / F9.9C / F9.9F / F9.9J / F15A / F15C / F20B
Not the one in the picture but same model. It is used and could need cleaning before use.