CIRCULAR CONN PLUG 21-75 CABLE; Product Range:Tri-Start TV Series; Circular Connector Shell Style:Straight Plug; No. of Contacts:4Contacts; Circular Contact Type:Crimp Socket; Coupling Style:Threaded; Insert Arrangement:21-75; Connector Body Material:Composite Body; Connector Body Plating:Olive Drab Chromate over Cadmium; Contact Material:Copper Alloy; Contact Plating:Gold; Insert Rotation:D; Service Class:Corrosion Resistant EMI; Equivalent Military Specification:MIL-DTL-38999 Series III; SVHC:No SVHC (17-Dec-2015)