TE Connectivity Deutsch Connectors
CONN MS3137E7-50S. Circular MIL Spec Connector MS3137E3-50S PLUG
TE Connectivity AMP Connectors
CONN RCPT FMALE 37POS GOLD SLDR. Standard Circular Connector RCPT 37P BLACK
TE Connectivity AMP Connectors
CONN RCPT FMALE 3POS SOLDER CUP. Standard Circular Connector SKT HDR 3P 3A SOLDER