Gee I've never heard them referred to as that but I know it's not endpin jacks because the ones I'm after are those with all the stuff exposed, you the pieces that you solder onto. I'm talking about the ones like this for instance:
http://www.guitarelectronics.com/product/JK14/Switchcraft-14-Stereo-Input-Jack-with-38-Threaded-Collar.html
Thanks