CONNECTOR CIRCULAR SIZE 20 4WAY; Product Range:-; Circular Connector Shell Style:Box Mount Receptacle; No. of Contacts:4Contacts; Circular Contact Type:Solder Pin; Coupling Style:Threaded; Insert Arrangement:20-4; Connector Body Material:Aluminium Alloy Body; Connector Body Plating:Olive Drab Chromate over Cadmium; Contact Material:Copper Alloy; Contact Plating:Silver; Insert Rotation:X; Service Class:General Duty; Equivalent Military Specification:MIL-DTL-5015 Series