NSN Lookup Tool - Search NSN Parts

Welcome to our NSN lookup page, where you can conduct an NSN search to find exact items with ease. National Stock Numbers (NSN), or NATO Stock Numbers as they are also referred to, are thirteen-digit numerical codes used by the United States Department of Defense and all members of NATO to catalog and organize parts and items that are regularly procured, stocked, stored, and shipped throughout the federal supply system. Whether one is purchasing handheld tools or aircraft structural components, a NATO stock number search or army NSN lookup can allow one to identify exact needs and streamline procurement.

The first four numbers of an NSN serve to denote the item’s Federal Supply Group (FSG) and Federal Supply Class (FSC), the first two digits being the FSG and the full four being the FSC. Parts of varying types are separated into distinct groups and classes based on relation, furthering organization for the benefit of international trade and supply. After the first 4 digits of the NSN, the next two that follow represent the country that first classified the item. Lastly, the final 7 digits are a unique string of numerals for a specific item. With a plethora of parts being listed on our website alongside NSN information, be sure to take advantage of our lookup tools to make procurement quick and easy.