MS3108E12S-3S is a MIL-spec circular connector 90° plug designed for reliable electrical connections in demanding environments. This connector features a shell size 12S with a 3/4-20UNEF-2B coupling thread and is part of the MS3108 series which mates with 3100 and 3102 receptacles and 3101 plugs. The MS3108E variant is supplied without an O-ring seal under the coupling nut and without cable clamp. These connectors are commonly used in military, aerospace, and industrial applications where robust, secure connections are required.