Electronic Component Identification DR6000 Hach

Hello, I would like to kindly request the assistance of knowledgeable specialists in identifying a few components that I need to replace in order to repair the motherboard of a Hach DR6000 spectrophotometer. I am particularly interested in identifying the component labeled “455F.”



The component that was previously in its place appeared to be a black, cube-shaped resistor (I’m still new to this field).