I imagine you need to say more than a 5 pin din cord because there's no guarantee that every brand is the same. You need to say if you want it to be either Futaba compatible, JR, Multiplex, etc. They vary among the brands as to what pin connects to what, i.e. pin 1 on brand A may be pin 2 on brand B.

The website has the part numbers by brand I think. http://aeroflypro.com/purchase/ for details.