If the circuit is open

As a 55 microfarad 440Vac oval run capacitor

This is a shunt

This 1/2 inch crank arm is specifically designed to interface with damper or splined actuator shafts

as they share the same mounting dimensions

Amana-Goodman B1370176 Pressure Switch If the circuit is openThe Amana Goodman B1370176 Pressure Switch is a critical safety component designed for specific high efficiency furnaces. Calibrated to a 0. 47" WC set point, this SPST (Single Pole Single Throw) vacuum switch monitors the pressure differential within the inducer housing to ensure the combustion blower is extracting flue gases safely before allowing the ignition sequence to proceed. Featuring a standard 1 4" barbed connection and 1 4" male spade