MS3101E10SL-4S is a circular connector socket designed for military and industrial applications, featuring a threaded coupling mechanism and cable-connecting plug configuration. The connector accommodates 2 contacts of size 16S with solder cup termination and hard silver plating, providing reliable electrical connections. It operates at a contact rating of 22 A at +20°C with a contact resistance of 6 mO, and supports a test voltage of 1600 Vrms with an insulator resistance exceeding 1000 MO. The connector is constructed from aluminum alloy with olive drab chromate coating over cadmium plating, neoprene insulator and gromet material, and copper alloy contacts, ensuring durability in harsh environments. It maintains IP65 protection rating, withstands 500 hours of salt spray exposure, and supports a minimum of 500 mating cycles with a coupling torque range of 0.15 Nm to 1.7 Nm. This connector is ideal for aerospace, defense, and industrial equipment requiring robust, sealed electrical connections in temperature ranges from -55°C to +125°C.