The 11K5029-KMNB is a control knob designed for use with encoders and rotary switches. This Style 5029 knob is constructed from durable nylon in a black finish, measuring 0.500 inches in diameter and 0.500 inches in height. It is specifically designed to fit a 0.250-inch diameter shaft and secures firmly using a metal insert with set screws for a reliable connection. As part of the Grayhill control knob series, it is ideally suited for various user interface applications requiring precise manual input.