Final answer:
The minimum curing time for adhesive used in the repair of the MBU-19P mask can vary and should be sourced from the technical manual or manufacturer's instructions. Curing times can range from a few hours to over 24 hours, depending on various factors.
Step-by-step explanation:
The minimum number of hours required for adhesive to cure when replacing the plenum tubes during the repair of the MBU-19P mask is a detail that would typically be found in the technical manual or the manufacturer's instructions specific to the adhesive used. Since this is a specialized task often related to military or aerospace applications, following the precise instructions from the equipment's maintenance manual is crucial for ensuring the mask integrity and safety of the user.
Without access to the specific technical documentation, it's not possible to provide an accurate figure for the curing time. However, as a general guideline, adhesive curing times can range from a few hours to 24 hours or more, depending on factors such as the adhesive type, ambient temperature, and humidity. It's essential to consult the relevant documentation or contact the manufacturer to obtain the correct curing time for the specific adhesive used in the MBU-19P mask repair.