this has been debunked:

- - -

The lunar module on display at the Apollo/Saturn V Center happens to be the last remaining lunar module that was fully constructed, intended to fly humans to the moon, and never used. It was for the original H-class missions, but when Apollo was cut short, NASA moved up the timeline to transition to the J-class missions (the most visible difference being the presence of the lunar rover) and that meant the last H-class lunar module would go unused. Fortuitously, the would-be Apollo 15 LM is on display with its hatch open and tilted down at an angle that allows it to be scanned from the ground by a LIDAR scanner. Directly across the hall from the LM is a full sized Apollo training suit used by Gene Cernan, worn by a dummy, complete with its practice PLSS (portable life support system) backpack attached. I scanned both objects using my Arduino based LIDAR device from multiple positions around each object, then combined the scans in MeshLab and brought them into a single project file for direct comparison. To my great shock and surprise, the spacesuit fits through the lunar module hatch beautifully.