A274 is a nickel plated brass hardware nut designed for switch and electronic component assembly applications. It features a 1/4-40 UNS-2B thread specification with dimensional specifications including a diameter range of 0.436 to 0.438 inches. The nut is manufactured from nickel plated brass, providing corrosion resistance and durability in standard electronic hardware applications. It is commonly used in switch assemblies, panel-mounted components, and miscellaneous hardware configurations where reliable fastening and aesthetic finish are required.