Originally Posted by
UAPremExecflyer
Assuming your inbound flight is on-time, with Global Entry, you should be able to make the connection. No time for stopping in the lounge.
If the OP has an AmEx Platinum they will probably have time for the AirSpace lounge in T5. PreCheck at T5 might not be open which will slow you down a bit but I'd say that connection is definitely doable, assuming the inbound is on time.