CIRCULAR SIZE 25 56WAYS PIN; Military Specification:MIL-DTL-38999 Series III; Circular Connector Shell Style:Wall Mount Receptacle; No. of Contacts:56Contacts; Circular Contact Type:Crimp Pin; Coupling Style:Threaded; Insert Arrangement:25-4; Connector Body Material:Composite Body; Connector Body Plating:Electroless Nickel; Contact Material:Copper Alloy; Contact Plating:Gold; Insert Rotation:N; Service Class:General Duty; Product Range:MIL-DTL-38999 Series III