It comes in MIL SERIES CONNECTOR packaging.The device's mounting type is BOARD AND PANEL.In addition, there are other features such as STANDARD: MIL-DTL-38999, EMI SHIELDED, POLARIZED, to mention only a few.
D38999/23HJ61CA Features
D38999/23HJ61CA Applications
There are a lot of TE Connectivity Deutsch Connectors D38999/23HJ61CA Circular Connectors applications.