Re: Prop play???
" I BELIEVE it's a TP Hustler?" Provide exact model/part numbers please...of your prop, your hub kit, AND your motor. Based on vague info provided thusfar, I am becoming about 98% sure you purchased the wrong stuff for your motor...were you extremely specific with Dans Discount props when you ordered? Please be aware that all 2000 Johnson 50's are NOT the same. Couple that with the fact that Hustler has changed their hub designs a few times over the years...and I have no idea if you got a new/late model or an older/discontinued model "new" Hustler propeller at discount?
I see at least 3 possibilities. I THINK you might need these instructions for Hub kit #33, not the first ones I sent:
http://www.turningpointpropellers.com/IMAGES/hub_33_inst.pdf
However if it's a Turning Point Hustler on a 2000 50 Johnson SPECIAL, you need might hub kit #12, which is this one:
http://www.turningpointpropellers.com/IMAGES/hub_12_inst.pdf
Note if it's hub kit #33 above, you simply have OEM thrust washer, prop, spacer, then nut. That particular setup doesn't even use a "plastic washer" that you keep referring to.
AND...last and MOST likely, I think it is entirely possible that with many of Turning Point's Hustler props that you might actually need hub kit #503 for the standard Johnson 50, which is a kit that provides you with a DIFFERENT thrust washer to replace your OEM washer:
http://www.turningpointpropellers.com/IMAGES/hub_503_inst.pdf
And this "metal washer" you refer to, is it splined? It should fit those splines, it shouldn't just be a roound washer.
It is very very difficult to help you out if we don't know exact product you are trying to install...and we don't know even what specific Johnson motor you have. I'm completely drawing straws here and flat-out guessing what produuct you have purchased AND what exact motor you are trying to put on.
The absolute best guess I can provide for you? I HONESTLY BELIEVE YOU HAVE PURCHASED THE WRONG HUB KIT FOR YOUR PARTICULAR MOTOR/PROP COMBO....whatever combo that actually is...especially if you were not perfectly specific with the seller about EXACTLY which motor you own. So again I highly suggest you contact Dans Discount props where you purchased this from and give them an opportunity to help you out, after you learn your exact engine part number, etc....we really are doing nothing but spinning our wheels here...