MS3126E16-26S is a straight plug connector conforming to MIL-C-26482 Series I specifications, featuring a shell size 16 with 26 socket contacts designed for crimp termination. The connector is classified as service class E with grommet seal, providing environmental protection suitable for industrial applications requiring quick-disconnect capability. Key dimensional specifications include a maximum shell diameter of 1.305 inches (33.15 mm), a maximum overall length of 2.943 inches (74.75 mm) for Type J configuration, and a thread specification of 15/16-20UNEF. This connector is commonly used in aerospace, military, and industrial equipment where reliable, reusable connections with high contact density are essential.