Single-pole, normally-open momentary switch. Attractive and functional dome-shaped pushbutton. 0.70" diameter black plastic bezel. 0.45" blue plunger. Extends 0.3" above mounting plane. Threaded bushing mounts in 0.53" diameter hole. Solder terminals. Also available with a red button (
PB-138), black button (
PB-139), green button (
PB-172G) and yellow button (
PB-172Y).