Zenith 1941 Volume Knob

Fits a 1/8" shaft, secured with a set screw.

models: 10A1, 10A2, 10A3, 6J463, 8S531, 10H573, 10S531, 10S566, 10S567, 10S571, 10S671, 12S599, 12S569, 10H551, 10H571 and 10H573. 

Dimensions: 1-1/8" diameter, 3/4" tall, 1/8" hole