1 Meg Ohm Audio Taper Potentiometer
24mm body diameter. 1/4" bushing diameter. .335 shaft length. .25" Shaft diameter.
Electrical specs: Linear pots: 1/2w @ 500 volts. Audio pots: 1/4w @ 250 volts.
https://www.cedist.com/sites/default/files/associated_files/r-va2x1ml_specification_sheet.pdf