160556 is a part available from C&K, a leading manufacturer of switches, components, and connectors. This part is a 2.54mm spacing, right angle 4 Pin Surface Mount Tact Switch. It is made of a snap-in type housing, and has a contact rating of 250V and 4A. This switch is also RoHS compliant and UL approved, ensuring it is safe for use in various applications. The switch also features a long operating life of 500,000 cycles, providing a reliable and durable solution.