CONNECTOR CIRCULAR SIZE 18 4WAY; Product Range:GT Series MIL-DTL-5015 Series Equivalent; Circular Connector Shell Style:Wall Mount Receptacle; No. of Contacts:4Contacts; Circular Contact Type:Solder Socket; Coupling Style:Reverse Bayonet; Insert Arrangement:18-4; Connector Body Material:Aluminium Alloy Body; Connector Body Plating:Olive Drab Chromate over Cadmium; Contact Material:Copper Alloy; Contact Plating:Silver; Insert Rotation:N; Service Class:General Duty; Approval Category:MIL-C-5015; Connector Insert Type:18-4; Connector Mounting:Panel Mount; Connector Shell Size:18; Connector Type:Circular Industrial; Contact Gender:Socket; Contact Plating:Silver Plated Contacts; Contact Termination:Solder; Contact Termination Type:Solder; Gender:Receptacle