The 5-747908-2 from TE Connectivity is an AMPLIMITE HD-20 D sub standard plug connector with grounding indents. The connector shell size is 2 with 15 pin contact.
Tin plated steel shell
Insert material? is thermoplastic
Contact size is 20
Contact base material?is phosphor bronze
Solder tail contact plating material?is tin copper over nickel
Contact mating area plating material?is gold flash