• Intermatic knob for the FD series spring wound type in-wall mounted timers for fans, lights, motors, heaters, and other energy consuming loads
• Intermatic part # 146--00046
• Outer Diameter: 1"; D-shape shaft: 3/16"; 1 knob included; Color: White
• Fits on a 3/16" size D-shape shaft; Snug-fit design with 4 raised ribs running down the hole, giving it a slight interference fit
• Genuine Intermatic replacement part; Also known as older parts 146MT574A and 146MT494A
• Press-on knob design ensures quick and easy installation