The 71C2053 is a multi-deck rotary switch designed for printed circuit board mounting in the Grayhill Series 71 product line. It features a 36° angle of throw configuration with common terminal hole locations at positions A and B for single or dual-pole deck configurations. The switch includes a mounting bushing with a 0.500 inch (12.7 mm) diameter and 0.130 inch (3.30 mm) height, providing additional support for the front end of the switch on PC boards. The washer is 0.032 inch (0.81 mm) thick with a 0.375 inch (9.53 mm) outer diameter, and the overall bushing length is 0.687 inch (17.45 mm). This design accommodates spacer decks for multi-deck layouts and is suitable for applications requiring reliable rotary switching with precise positioning on printed circuit boards.