Connector: Shape: Circular with a threaded coupling mechanism. Material: Metal shell (usually aluminum alloy or stainless steel), often with an olive drab cadmium plating for corrosion resistance. Contacts: Left side (receptacle): Female contacts (sockets). Right side (plug): Male contacts (pins). Angle: Both connectors are 90-degree (right-angle) types, suitable for space-constrained environments. Strain Relief: Both connectors are equipped with strain relief clamps to secure the cable and reduce mechanical stress on the contacts. Usage: High-reliability environments requiring rugged and secure electrical connections.