The product comes in a package of MIL SERIES CONNECTOR.CABLE AND PANEL is the type of mounting for the device.Among other features are STANDARD: MIL-DTL-38999, POLARIZED, COMPATIBLE CONTACT: M39029/58364, to name only a few.
D38999/20SH21PN Features
D38999/20SH21PN Applications
There are a lot of SOURIAU-SUNBANK D38999/20SH21PN Circular Connectors applications.