500K Bourns Mini Audio Taper Split Shaft Pot. Includes Nut and Dress Washer. US thread and 18 spline.
Dimensions – The threaded portion on the shaft is 9.5mm long. Diameter of the threaded portion of the shaft is 10mm. Diameter of the Split Shaft / Spline is 6mm. Total length of the shaft to the top of the spline is 19mm.
Audio Taper Pots are generally used in both Volume and Tone Positions.
Rule of thumb – 250K pots are generally used with single-coil pickups. 500k pots are generally used with humbuckers.