I am guessing if the definitions from the DOD are compiled like the Intelligent Updater files, then the answer might be yes, but I am unaware of signatures being created by the DOD for Symantec products. You should post this in the Norton Community as well, there are experts with Norton there to help. I do not know what the AKO site is that you refer to, I would never trust definitions from a non-Symantec source
http://www.symantec.com/business/security_response/definitions/download/detail.jsp?gid=savce