CIRCULAR, SIZE 23, 55WAYS, PIN; Military Specification:MIL-DTL-38999 Series I; Circular Connector Shell Style:Wall Mount Receptacle; No. of Contacts:55Contacts; Circular Contact Type:Crimp Pin; Coupling Style:Bayonet; Insert Arrangement:23-55; Connector Body Material:Aluminium Alloy Body; Connector Body Plating:Olive Drab Chromate over Cadmium; Contact Material:Copper Alloy; Contact Plating:Gold; Insert Rotation:A; Service Class:Environmentally Sealed; Product Range:MIL-DTL-38999 Series I