MSP: How long was your scheduled transit at PVG? A few hours or over a day?

I have a 5 hour transit booked as follows in July:

DTW - PVG on DL 744
PVG - MEL on China Eastern

Do you think there is risk for this with a five hour stay?

It is a one way ticket as return is SYD-LAX on AA.

This is all low level business award ticket I feel really lucky to have pieced together and it would not want to see it messed up last minute over this Visa question.