Conn Cylindrical Circular PIN 4 POS Solder Cup ST Box Mount 4 Terminal 1 Port
Conn Cylindrical Circular PIN 16 POS Solder Cup ST Box Mount 16 Terminal 1 Port

MIL-DTL-5015 Circular Connector, 4 Pos, Solder, Straight, 13A, 250V
10 Pin Circular Connector, Male, Solder, Straight, Aluminum, Cadmium