250K Alpha Pan Pot. Solid 1/4" shaft for standard USA set screw knobs. Mounting hardware nut and beauty washer are included. Brand New. Genuine Fender 0049441000. UPC 717669065126. 250K solid-shaft, center-detented potentiometer for use with set-screw knob. Used to blend middle and bridge pickups on Deluxe and American Deluxe series basses manufactured from 1997-present.