CIRCULAR SIZE 25 56WAY PIN (L/C); Military Specification:MIL-DTL-38999 Series III; Circular Connector Shell Style:Straight Plug; No. of Contacts:56Contacts; Circular Contact Type:Crimp Pin - Contacts Not Supplied; Coupling Style:Threaded; Insert Arrangement:25-4; Connector Body Material:Aluminium Alloy Body; Connector Body Plating:Olive Drab Chromate over Cadmium; Contact Material:Copper Alloy; Contact Plating:Gold; Insert Rotation:C; Service Class:Corrosion Resistant EMI; Product Range:MIL-DTL-38999 Series III