The 44M45-01-1-04N is a multi-deck rotary switch manufactured by Grayhill, designed for rugged, long-life operation in demanding applications. This 1-inch diameter switch is rated for 1 ampere continuous current and features military-qualified construction per MIL-S-3786/04 specifications. The switch incorporates a 3/8-32 UNEF-2A threaded shaft with integral assembly nut, non-turn tab dimensions of 0.125 ± 0.003 inches wide by 0.031 ± 0.003 inches thick, and a bushing keyway of 0.066 ± 0.002 inches wide by 0.036 ± 0.003 inches deep. Available in multiple deck configurations with adjustable stops and various contact options (non-shorting or shorting), this switch is ideal for military, aerospace, and industrial control applications requiring reliable multi-position selection with precise mechanical detents.