I don't have answer from within Nautilus, but I do have a solution to the problem I was having. As newcomer to Linux I was looking for an answer to the same question and I'm really surprised that this feature isn't there.
I am running an SSD, but they're not cheap so I've only got 64 GB on my hard drive. I load Ubuntu and within days half the disk is gobbled up. I discover that my home folder is the culprit - but which sub-folders are the problem? Sure, I can expand the whole tree and check the properties of each file individually, but that will take me half the morning.
This link gives some very simple command line instructions that enable you to list all the files whose size lies between the range you specify in the directory you specify - so you can instantly find all the biggies.. But that may not be why you wanted the feature.
Anyway, here's the link
http://www.unixtutorial.org/2008/03/find-large-files-and-directories/