This is a single Brand New Goodman/Janitrol/Amana Plastic Door Latch/Clip. The Goodman/Janitrol/Amana part number B1392132. The clip is composed of two pieces but they are joined from the factory. Twist them apart and insert one into the other rotate to latch. It goes on many Goodman/Janitrol Furnaces. Thanks for looking and good luck!
A door switch makes or breaks an electrical connection when a door or panel is opened or closed. It is usually provided as a safety feature to avoid electrical shock or physical injury.