Pulling out parameter without dependency/building whole project

Hi, 
I have encountered a problem with this kind of build structure 
-- PROJECT
|
-------SubProject A
-------------Build Steps A1
|
|
-------SubProject B
-------------Build Steps B1

The subproject B has a build chain of many steps which ends up with a product version in format #x.xx.xxx

I want to pull that number out and pass it to the SubProject A and its buildsteps A1. Just the number. Configuring the dependency A1 on B1 creates a requirement of going through whole build process of B1 and eventually getting higher number of the version when the A1 build steps are triggered outside of build chain (which is wanted!)

Long story short - is there any way (build steps or anything) for A1 to pull out JUST THE NUMBER of B1 version parameter without triggering the whole build process, but just relying on already built and last working