The 57HS22-04B16N is a Series 57 multi-deck rotary switch configured with 4 decks, 1 pole per deck, and 16 non-shorting positions indexed at a 22.5-degree angle of throw. As a military-qualified 'HS' style switch, it features shaft and panel sealing for robust performance and is qualified to MIL-DTL-3786/36 standards. The switch utilizes gold-plated contacts, can carry 4 amperes with a 20°C temperature rise, and has solder lug terminals. Its high-reliability construction makes it ideal for use in demanding military, aerospace, and industrial control applications.