A quick learner from Rio Ranco, NM 87124 says:
May 12, 2014
I cannot find this clip anywhere, it snaps into the metal frame and holds the glass in place and runs the entire frame of the window. I do not know what it is called, but I need 104" of it; thank you for your assistance. James
Tom from SWISCO responded:
May 15, 2014
Thanks for posting your pictures, James!
Take a look at the 55-164 Glazing Bead and see if you think it's a match.