The RK09K11100E9 from Alps Electric is panel mount rotary potentiometer with 50k Ohms resistance, ±30% tolerance, 0.05W power and PC pins / board locks termination. This potentiometer has 1 turn, side adjustment and 280° rotation. The RK09K11100E9 has knurled / serrated shaft with 0.787" (20.00mm) length and 0.236" (6.00mm) diameter. Operating temperature range is from -10°C to 70°C.