Our database is the only NATO-approved up-to-date database containing over 8 million active items managed by NATO and the international community reprensenting in total more than 60 countries.

A NATO Stock Number is a 13-digit numeric code identifying items of supply in use by the North Atlantic Treaty Organization (NATO) and partner armed forces.

It consists of the four-digit Federal Supply Classification (FSC) and the nine-digit National Item Identification Number (NIIN). The NIIN consists of a two-digit National Codification Bureau (NCB) number followed by a seven-digit item number.

The FSC can be broken down into two parts. The first two digits identify the broad scope of property, and is called the Federal Supply Group.

The first two digits of the NIIN signify the country that assigned the NSN. For example, 00 and 01 are both used in the NSN to identify the United States. The remaining seven digits are sequentially assigned to make each NSN unique.