The Microwave Mounting Nut is an OEM part for Samsung microwaves. This small yet crucial component is used to secure the microwave to its mounting bracket, ensuring it stays in place during operation.  Causes of a bad Microwave Mounting Nut include stripping of the threads, corrosion due to moisture exposure, or general wear and tear which can compromise the integrity of the microwave’s installation. Symptoms of a failing Microwave Mounting Nut are: Microwave becoming loose from its mount Unusual movement or rattling sounds during operation Difficulty in securing the microwave during installation or maintenance This OEM Samsung part is also compatible with some Kenmore models.DE92-90508A (AP4233223) replaces 2084655, PS4236334.