500 kOhm potentiometer, logarithmic.

Features:

• Metal shafts with fish shape.
• Completely removes tone control from the circuit when turned fully.
• Manufactured with low tolerance for less dispersion and greater accuracy.
• Height: 27 mm.
• Dimensions: Diameter 23.5 mm.
• Thread length: 9.5 mm.
• Thread diameter: 9.5 mm.
• Shaft diameter: 6 mm.
• Made in the United States.
• Note: Suitable only as a tone control.