ASI LPCB103KIT Push Button Switch Kit with Green Spring Return Actuator, 1 NO Contact and 1 Contact Holder, Mounts in 22 mm Hole: Amazon.com: Industrial & Scientific
NSI 76080PS Push Button Switch, On Off Circuit Function, SPST N.C, Brass/Nickel Actuator, 15/10 amps at 125/250 VAC: Electrical Switches: Amazon.com: Industrial & Scientific
SWITCHTRONIX Serie BZ - Iluminated Actuator, Panel-Mount Push Button - Ø22,5 mm - Red