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A '''NATO Stock Number''', or '''National Stock Number''' (NSN) as it is known in the US, is a 13-digit numeric '''[https://en.wikipedia.org/wiki/Code code]''', identifying all the 'standardized material items of supply' as they have been recognized by all NATO countries including [https://en.wikipedia.org/wiki/United_States_Department_of_Defense United States Department of Defense]. Pursuant to the [https://en.wikipedia.org/wiki/NATO NATO] <span style=color:blue>[https://en.wikipedia.org/wiki/Standardization_Agreement Standardization Agreements]</span>, the NSN has come to be used in all treaty countries.
A '''NATO Stock Number''', or '''National Stock Number''' (NSN) as it is known in the US, is a 13-digit numeric '''[https://en.wikipedia.org/wiki/Code code]''', identifying all the 'standardized material items of supply' as they have been recognized by all NATO countries including '''[https://en.wikipedia.org/wiki/United_States_Department_of_Defense United States Department of Defense]'''. Pursuant to the '''[https://en.wikipedia.org/wiki/NATO NATO]''' <span style=color:blue>'''[https://en.wikipedia.org/wiki/Standardization_Agreement Standardization Agreements]'''</span>, the NSN has come to be used in all treaty countries.
[[Image:13 digit NSN code structure.PNG]]
[[Image:13 digit NSN code structure.PNG]]
abcd-ef-ghi-jklm
abcd-ef-ghi-jklm
Each element, a through m, was originally intended to be a single [https://en.wikipedia.org/wiki/Decimal decimal digit]. As inventories grew in complexity, element g became [https://en.wikipedia.org/wiki/Alphanumeric alphanumeric], beginning with capital A for certain newly added items. By 2000, uppercase C was in use.
Each element, a through m, was originally intended to be a single '''[https://en.wikipedia.org/wiki/Decimal decimal digit]'''. As inventories grew in complexity, element g became '''[https://en.wikipedia.org/wiki/Alphanumeric alphanumeric]''', beginning with capital A for certain newly added items. By 2000, uppercase C was in use.
<span style="font-size:110%;">'''Federal Supply Classification Group (FSCG)'''</span>
<span style="font-size:110%;">'''Federal Supply Classification Group (FSCG)'''</span>
The nine digits, ef-ghi-jklm, comprise the NIIN (National Item Identification Number). This format improves readability but is optional as NIINs are often listed without hyphens.
The nine digits, ef-ghi-jklm, comprise the NIIN (National Item Identification Number). This format improves readability but is optional as NIINs are often listed without hyphens.
The first two digits of the NIIN (the ef pair) is used to record which country was the first to codify the item—which one first recognized it as an important item of supply. This is generally the [https://en.wikipedia.org/wiki/Country_of_origin country of origin], meaning the country of final manufacture. The formal name of the field is CC for Country Code or NCB, because NCB also stands for [https://en.wikipedia.org/wiki/National_Codification_Bureau National Codification Bureau]. The NCB is the organisation, typically a government agency, in charge of maintaining the NCS database within a given country. The other 7 characters are a non significant identification number (actually code, as some of these characters may be alphanumeric, although in general NIINs are strictly numeric).
The first two digits of the NIIN (the ef pair) is used to record which country was the first to codify the item—which one first recognized it as an important item of supply. This is generally the '''[https://en.wikipedia.org/wiki/Country_of_origin country of origin]''', meaning the country of final manufacture. The formal name of the field is CC for Country Code or NCB, because NCB also stands for '''[https://en.wikipedia.org/wiki/National_Codification_Bureau National Codification Bureau]'''. The NCB is the organisation, typically a government agency, in charge of maintaining the NCS database within a given country. The other 7 characters are a non significant identification number (actually code, as some of these characters may be alphanumeric, although in general NIINs are strictly numeric).
'''Country NCB Code(s)'''
'''Country NCB Code(s)'''
