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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 code, identifying all the 'standardized material items of supply' as they have been recognized by all NATO countries including United States Department of Defense. Pursuant to the NATO Standardization Agreements, 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] [[https://en.wikipedia.org/wiki/Standardization_Agreement/ Standardization Agreements], 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 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.
Federal Supply Classification Group (FSCG)
<font +1>'''Federal Supply Classification Group (FSCG)'''</font>
The initial subgroup, abcd, is the Federal Supply Classification Group (FSCG) [2] or National Supply Classification Group (NSCG). In theory, similar items would always have closely related numbers in this section of the NSN, no matter how the section is referred to. As the number of items has steadily increased and the system has become more complicated, it has not always been possible to keep similarity in numbers when the items are similar.
The initial subgroup, abcd, is the Federal Supply Classification Group (FSCG) [2] or National Supply Classification Group (NSCG). In theory, similar items would always have closely related numbers in this section of the NSN, no matter how the section is referred to. As the number of items has steadily increased and the system has become more complicated, it has not always been possible to keep similarity in numbers when the items are similar.