The 8406K1 is a general-purpose, non-illuminated momentary pushbutton switch. It features a single-pole, single-throw (SPST) normally closed (NC) contact configuration and is rated for 3/4A at 125V AC/DC or 1/4A at 250V AC/DC. This light-duty switch has a black nylon button, requires a maximum operating force of 0.7 lbs, and is designed for flush mounting with solder lug terminals. Due to its light operating pressure and momentary action, it is well-suited for various general-purpose and instrumentation applications.