The 71B30-02-1-09N is a multi-deck rotary switch from Grayhill's Series 71 line, featuring a 0.125" diameter shaft with molded-in position terminals and a 0.687" ± 0.015" diameter bushing. This switch is rated for 1/4 amp operation and offers selectable 30° or 36° angles of throw, with non-shorting contact configuration and 2 positions per pole. The switch accommodates up to 9 decks with a maximum height of 2.785" (70.74 mm) and weighs approximately 30 grams, providing a compact yet robust solution for multi-position control. It features a 1/4-32 UNEF-2A threaded bushing and is military qualified per MIL-DTL-3786/39, making it suitable for demanding industrial, aerospace, and military applications requiring reliable multi-position switching.