The Birns MSSP connector size is widely trusted for very large and/or extremely demanding applications and can be electro-mechanically terminated. High-pressure Plug Caps and Receptacle Caps are also available.
The MSSP-CP (Cable Plug) can be terminated to a solid cable (180º or 90º) or an oil-filled cable (180º or 90º) with adapter. Some pin configurations can include an optional pressure relief valve (“PB”) to equalize pressure between the CP face and ambient.