If you need to install single-strength glass (3/32" thick) in a 1/8" deep by 1/8" wide aluminum channel, this gasket should work for you. It is made of gray vinyl and has fins on the sides to help keep the fit snug but not so tight that the glass won't slide in to the channel.

Works well on Hehr Tork and Multi-Tork windows like the 3500, 3600, 4800 and 4900 series from the 1960s and later.