Turns out the push pull cable I was asking about has a few names:

(1) Bowden cable 

Like our HVAC controls - appears to be a solid wire or cable inside a sheath, ends frequently shaped from the wire itself.� Sheath and wire can be cut to any length.

(2) Push pull cable / Control cable
The two names seem to be synonymous.� A fancier version of a Bowden cable.� Stranded cable inside a sheath, with fancy ends that slide inside one another like a piston (on the end of the cable) and cylinder (on the end of the sheath), eliminating the possibility of cable buckling.

Thanks for the many responses!� I knew I could count on you folks!

t johnson_90MV