MPKA70B14 is a ribbed molded phenolic control knob with a white line indicator on the skirt, engineered for precision manual control applications. The knob features a custom molded phenolic body in black with a spun aluminum inlay and brass threaded insert, providing durability and anti-static properties. It is equipped with positive retention #6-32 set screws and is compatible with 1/4" diameter shafts. The knob's functionally rugged construction, combined with its cosmetic black gloss finish, makes it suitable for industrial control panels, test equipment, and instrumentation where reliable shaft engagement and visual position indication are required.