PKS1105B101/4 is a molded phenolic knob featuring a straight knurl aluminum skirt with 0-9 numerals indicator marking, designed for control applications requiring precise position indication. The knob incorporates a spun aluminum inlay and is equipped with a No. 6-32 set screw for secure shaft mounting. Key dimensional specifications include an overall diameter (A) of 1.17 inches (29.6 mm), a body diameter (B) of 0.571 inches (14.5 mm), and a skirt diameter (C) of 0.618 inches (15.7 mm), with a height (F) of 0.670 inches (17.0 mm). This knob is commonly used in instrumentation panels, audio equipment, and industrial control systems where reliable tactile feedback and clear numerical position indication are essential.