09YY50078 is a custom-configured multi-deck rotary switch from Grayhill's Series 09 line, designed for applications requiring multiple independent switching circuits in a compact form factor. The switch features a 0.5" diameter with a 1/4 amp rating and gold-plated contact system for reliable performance. It supports multiple angle of throw options (30°, 36°, 45°, 60°, and 90°) and can be configured with multiple decks and poles per deck to meet specific circuit requirements. The switch is available in both standard and military-qualified versions (MIL-S-3786/13), with options for non-shorting contacts and isolation posts between positions. Common applications include instrumentation panels, control systems, and military equipment where multi-position switching with high reliability is essential.