After extensive research and I may have found the exact configuration of the Sony ICF 2010 receiver exterior antenna jack idenitfied as J301 on the schematic. I have noticed that other owners also searched for the part.
At the SWITCHCRAFT 3.5mm mono jack receptacles schematics catalog there is an identical configuration jack to that of the Sony receiver.
Single closed circuit plus
Isolated switching transfer circuit
Published by SWITCHCRAFT
5555N Elston Ave.
Chicago, Il, 60530
I reside far away from the US at present and I know for sure that no one carries that part in this region. If anyone can contact SWITCHCRAFT from the Chicalgoland area I am sure they will identify a distributor that carries or can order the part.
I will be very happy to pay for the part, shipping and phone expenses.
If it is the fit part we could help many ICF owners with a defective antenna jack.