CIRCULAR CONNECTOR RECPT. 21-16 SKT; Military Specification:MIL-DTL-38999 Series III; Circular Connector Shell Style:Wall Mount Receptacle; No. of Contacts:16Contacts; Circular Contact Type:Crimp Socket - Contacts Not Supplied; Coupling Style:Threaded; Insert Arrangement:21-16; 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:Corrosion Resistant EMI; Product Range:MIL-DTL-38999 Series III