The part is a storm window slide that has a spring, then a plunger and a threaded insert that acts as the handle .
I need about 26 or so since they all are corroded and break.
Dave Sr. from SWISCO responded:
July 7, 2017
I'm not sure, but take a look at the 91-179 slide bolt. I believe this is the only type of part like this still available. See if the size and dimensions match up to yours.
A quick learner from Ballstonn Lake says:
July 7, 2017
It's not perfect but I think I can modify it to fit. I saw in another post that it was aluminum so it shouldn't be to bad. I have a small metal lathe I have never used so its an excuse to get it running.
The spring side is to long. The part I have has the spring slide over the shaft up to a 1/4 inch from the nob. So I will need to cut it down to match