Stretching part results

Hi,

I have a silicon part with ID = 13.5mm  and OD = 20.6mm - see att. file

If I stretch this part into a hub of 15mm  OD - Is there a simple way to figure out the OD of the silicon would be

Please roll to the end to see all features

thank you in advance for any help

huh ... part is only 302k and sw won't allow me to upload here

SolidworksParts And Features