Vol and pitch coil insulator

Does anyone have a source and part number for the small insulator tube that connects the wire running up through the bottom of the oscillator frame to the vol. and pitch coils?

Are you talking about the banana/pin connector used for the coils and for the test point?  Because I have had the darndest time finding something I like that will also fit with the low clearance on the underside. 

If you've found something, I'd like to know!