The 35-423 is a normally open, single-pole single-throw (SPST) pushbutton switch with a momentary 'Off (On)' function. It is rated to handle 3 amps at 125 VAC and features a red plastic actuator with a length of 0.125 inches. Designed for snap-in installation, it fits a 0.687-inch mounting hole and provides solder eyelet terminals for electrical connections. This switch is suitable for applications requiring a temporary circuit closure, such as control panels or user input interfaces.