TE Connectivity's Anti-Vandal Pushbutton Switch Hardware consists of nickel-plated brass hex nuts and silicone O-rings. The hardware comes in 16mm, 19mm, 22mm, and 25mm sizes. These components are for use with the Alcoswitch Anti-Vandal Pushbutton Switches in the AV, AVH, AVC, and AVP series'. Features & Specs * Type: O-Ring * Designed for: 22 mm AV Switch * Height: 1.5 mm * Material: Silicone Elastomer * Outside Diameter: 22 mm