The TW28A-STC with Adapter is an electronic part manufactured by BESSEY. It has a mounting hole diameter of 6 millimeters and comes with various STC attachment options, like STC-HH, STC-IHH, and STC-VH. It has a diameter of 28 millimeters. This part is an adjustable spring plunger made of stainless steel to allow for exact positioning without backlash. It is suitable for use in applications such as motor control, data processing, and robotics.