Part Number: 13047919B (Adjusting knob)Part Number: 1362-526 (Adjusting knob)Part Number: 640SK-03 (Adjusting knob)Part Number: 8296195-2 (Adjusting knob)Part Number: 989552 (Adjusting knob)Part Number: M39265 (Adjusting knob)Part Number: M39352 (Adjusting knob)