The 71BD30-01-1-AJS is a multi-deck rotary switch from Grayhill's Series 71, designed for reliable switching in industrial and military applications. It features a 0.5–0.75" diameter body with a 1/4 amp contact rating, molded-in position terminals, and choice of shaft/bushing diameters (0.125" or 0.250"). The switch offers 30° and 36° angles of throw, with military qualification per MIL-DTL-3786/39, ensuring durability and performance in demanding environments. Key specifications include a 0.687" ± 0.015" body diameter, 1/4-32 UNEF-2A thread for mounting, and support for multiple deck configurations with adjustable or continuous rotation options. This switch is ideal for control panels, instrumentation, and applications requiring precise position selection with long operational life.