The BOURNS part 3856A-287-502HL is a resistor cermet potentiometer with a resistance of 5K Ohm and a tolerance of 5%. It has a power rating of 2W and a rotary angle of 1 (Electrical)/3.75 (Mechanical) turn. The potentiometer is designed for panel mounting or through-hole installation with its 6.35mm (19.05 X 28.55mm) pin configuration. It is a reliable and versatile component suitable for various electronic applications.