Bourns 500K split shaft audio taper potentiometers. Some features of this pot are: 500K Ohms/15% Tolerance Audio Taper. Solid brass 3/4" bushing Split, coarse 18-tooth, knurled, .236" diameter shaft Each pot comes with hardware - nut & dress washer Requires 3/8" diameter mounting hole. • MFSKU PDB241-GTR01 • UPC 691852991785