The PRECISION ELEC part KU1021S28-D is a high-quality potentiometer designed for precision control applications. It features a MIL Part# RV4NAYSD102A and offers a resistance of 1 Kohm with a tolerance of 10%. This potentiometer has a power rating of 2 watts, making it suitable for a wide range of electrical projects. The potentiometer also features a linear taper, ensuring smooth and accurate control. It has a 1/4 diameter slotted shaft that is 7/8 long, allowing for easy installation and adjustment. Overall, the KU1021S28-D potentiometer is a reliable and durable component that provides precise control over various electrical systems.