The 35-3195 is an SPDT keylock switch designed for general-purpose on/on switching applications. It features a 4-tumbler lock mechanism with single-position key removal capability and operates at 4 amps at 125 VAC. The switch has a 45-degree index rotation and includes a metal key actuator with 6-inch wire leads for terminal connection. The mounting hole dimensions are 0.760 x 0.640 inches, and the switch comes with a nut and 2 keys as standard hardware. This keylock switch is commonly used in control panels, equipment access, and applications requiring secure switching with key-based operation.