Help Identifying 5K* Potentiometer
It seems this potentiometer belongs to the F10KV6 series by Favor (or Polyshine). It falls under the category of "rotary joystick potentiometers". The form factor seems to be the same as the original (even though the resistance could be different). The ultimate confirmation would be to obtain one, but since the minimum order quantity from the suppliers found is 1000 units this is unlikely.

SE Note:
Since this is along the lines of the information I was hoping to obtain I am posting this as an answer rather than a comment. If it is inappropriate for me to do this, feel free to take whatever corrective action is necessary.

http://www.switches.co.kr/f10kv6.htm

http://www.alibaba.com/product-gs/717840000/10mm_Joystick_Rotary_Potentiometer_F10KV6.html