Find any of 17 million National Stock Numbers by NSN, NIIN, part number, item name, company or CAGE code, or browse by supply class. Prices, characteristics, packaging and freight data, updated monthly from DLA's public PUB LOG release.
Example: 5305-01-441-9789, SCREW,MACHINE. An NSN is 13 digits: the four-digit Federal Supply Class (FSC) followed by the nine-digit National Item Identification Number (NIIN).
The first four digits place the item in a class of similar items. The first two digits are the Federal Supply Group (FSG), the broad category. There are 80 groups covering nearly every type of property. The third and fourth digits narrow it to a specific type. The FSC can change if an item is reclassified.
The last nine digits, made of a two-digit NCB code and a seven-digit item number. The NIIN identifies the item: the FSC adds its classification, and the NIIN stays the same even if the FSC changes. You can search NSN Index by NIIN alone.
The first two digits of the NIIN are the code of the NATO Codification Bureau that assigned the number, which shows the country that first catalogued the item. It is not the country of manufacture. The United States uses 00 and 01. Other examples are 12 for Germany, 14 for France, 20 and 21 for Canada, 66 for Australia and 99 for the United Kingdom.
The remaining seven digits are assigned in sequence to make each NSN unique. They have no meaning on their own.
Enter a manufacturer part number to find the NSNs it is listed under. Dashes, slashes and spaces don't matter.
Try a part numberExplore the catalog by Federal Supply Group and Class, from hardware and abrasives to electronic components.
Browse all classesLook up MIL-STD-2073-1E packaging codes, or paste a solicitation's codes to see what each one requires.
Packaging code lookupEvery item page has a quote form. Requests go to A-DEFENSE, a US Defense supplier in Texas.
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