CONNECTOR CIRCULAR SIZE 23 21WAY; Military Specification:MIL-DTL-38999 Series I; Circular Connector Shell Style:Straight Plug; No. of Contacts:21Contacts; Circular Contact Type:Crimp Pin; Coupling Style:Bayonet; Insert Arrangement:23-21; Connector Body Material:Aluminium Alloy Body; Connector Body Plating:Electroless Nickel; Contact Material:Copper Alloy; Contact Plating:Gold; Insert Rotation:A; Service Class:Environmentally Sealed; Product Range:MIL-DTL-38999 Series I