Vishay Sfernice Series 23, Part Number 23A21B10, is a 0.250" (6.35mm) shaft size scale dial designed for 10-turn applications. This component is engineered for precise manual adjustment in systems requiring accurate setting and visual feedback. Its robust construction and reliable performance make it suitable for demanding environments. The 23A21B10 is commonly utilized in industrial control systems, test and measurement equipment, and advanced audio/visual setups where precise analog input is critical. Packaged in boxes, this Vishay Sfernice scale dial offers a durable and functional solution for panel-mounted control interfaces.