Clarostat RV4NAYSK251A Rotary Potentiometer 250K

Clarostat RV4NAYSK251A and RV4NAYSK254A are 250-kilohm rotary potentiometers from the RV4NAY family, built for panel-mount control with a carbon track that delivers a predictable, linear resistance change as the shaft turns through a single rotation. These single-turn devices offer a compact form factor, a 2-watt rating, and a 250-kΩ range with typical ±10% tolerance, making them suitable for calibrating signal paths, setting reference levels in test equipment, and providing repeatable, adjustable resistance in instrumentation panels. Solder-lug terminations simplify wiring, and the rugged body with a standard bushing is designed for panel mounting in space-constrained assemblies, while the carbon resistive element provides stable performance with low noise across operating environments; Clarostat is a brand now part of Honeywell. Common applications include calibration knobs in laboratory equipment, analog front-end control, and feedback networks in industrial controllers, where a fixed 250 kΩ variable resistance is required and reliable, repeatable adjustment is critical.