The MS3102R16-11S is a box mounting receptacle connector conforming to MIL-DTL-5015 Type R specifications, designed for reliable environmental-resistant applications in aerospace and military systems. This connector features a shell size 16 with a 1.0000-20UNEF thread (Class 2A) and accommodates up to 16 contacts in size 16 configuration. The receptacle is fabricated from high-grade aluminum alloy with electrically conductive cadmium plating and olive drab chromate after-treatment for superior corrosion resistance. It incorporates a neoprene grommet with low coefficient of friction for easier wire bundle threading and faster assembly, with molded webs in each wire hole providing a moisture barrier. The connector is suitable for applications requiring secure, sealed connections in harsh environments including aerospace, military vehicles, and industrial equipment where reliability and environmental protection are critical.