The 420065B14 is a machined aluminum control knob from the 42006 series, featuring a straight knurl finish with plastic insert and line indicator positioned on both top and side. This knob is designed for 1/4" diameter shafts and incorporates a brass threaded insert with heat-treated high alloy steel setscrews (hex head or slotted head) for secure retention. The knob is available in black gloss finish and includes anti-static plastic insert for enhanced durability and functionality. With its rugged construction and precision machining, this knob is ideal for control panel applications, instrumentation, and equipment requiring reliable manual adjustment with clear position indication.