I suggest you contact DLA -- they are the cataloging Organization for DoD -- specifically DLIS -- Defense Logisitics Information Service.  

Logistics Information Services is responsible for data strategy, management, operational control and accomplishment of logistics data support for all National Stock Number (NSN) items in the Federal Catalog System (FCS) used in supply management operations within and between the United States (U.S.) Military Services, other Department of Defense (DOD) activities, federal and civil agencies, and foreign governments.