The 44HS30-10-1-12N-C is a closed-construction rotary switch designed to MIL-DTL-3786/4M specifications, featuring a 2-ampere capacity with low-level switching capability and positive shaft grounding for enhanced reliability. The switch incorporates a flux seal design and utilizes a Style SR04 configuration with a 1.025-inch nominal housing diameter and 0.375-inch bushing keyway. Key dimensional specifications include a 1.306-inch terminal diameter, 1.180-inch housing diameter, and 0.375-32 UNEF-2A bushing thread, with tolerances of ±0.062 inches on the 1.025-inch dimension. This rotary switch is commonly employed in military and aerospace applications where sealed, low-level switching with positive grounding is required, offering robust performance in demanding environments.