The 8410K1 is a flight-mounted general-purpose pushbutton switch designed for momentary contact applications in AC/DC circuits. It features a 1PST (single pole, single throw) normally closed contact configuration with a contact rating of 3/4A at 125V AC/DC, making it suitable for low-to-medium power control circuits. The switch employs silver-plated copper movable and stationary contacts for reliable electrical performance, housed in a black nylon construction with a flush button design. The button dimension is 11.50 mm with a 0.453-inch extension, and it exhibits a typical maximum bursting force of 0.7 lbs, providing robust mechanical durability. This switch is commonly used in instrumentation, control panels, and general industrial applications where compact, reliable momentary switching is required.