The 083191-1-03N is a Series 08 multi-deck rotary switch manufactured by Grayhill, designed for standard and military-qualified applications requiring reliable contact switching. This switch features a 0.5" diameter with a 1/4 amp current rating, gold-plated contact system with over 100 grams of contact force, and a 36° angle of throw with fixed stop arrangement. The switch operates over a temperature range of -40°C to +85°C for standard style and -65°C to +85°C for MIL-DTL-3786 qualified versions, with rotational torque ranging from 8 to 64 oz-in depending on deck and pole configuration. It is commonly used in instrumentation, control panels, and military equipment where proven quality, multiple deck configurations, and shorting or non-shorting contact options are required.