NATO Stock Number (NSN)

A NATO Stock Number (NSN) of 13 digits in length will be assigned to the item of supply by the National Codification Bureau to define his identity. NSN is composed of a 4 digit NATO Supply Classification Code and a 9 digit NATO Item Identification Number (NIIN). The basic rule: "One item of supply, One NATO Stock Number"

The 9 digit NATO Item Identification Number is composed of a 2 digit NATO Code for the National Codification Bureau (NCB) and a 7 digit non-significant number assigned by the individual NCB.

Example of NATO Stock Number (NSN) with related entities is shown in the following example:

- NATO Stock Number (NSN)
- NATO Item Identification Number (NIIN)
- NATO Codification Bureau (73) Code of Serbia
- NATO Supply Class (NSC)

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