The 3081-A is a molded plastic knob designed for manual control and adjustment applications. It is manufactured from polypropylene (CLD) material in black color with a textured finish (ET-107) for improved grip and aesthetic appeal. The knob features a 5/16–18 UNC–2B threaded interface with a brass insert (part number 10528, H.H. brass) for secure mounting and durability. Key dimensional specifications include a maximum diameter of 1.44 inches and a height of 0.75 inches, with precision tolerances maintained throughout the design. This knob is commonly used in industrial equipment, consumer appliances, and control panels where reliable manual operation and professional appearance are required.