nsn

This term is proposed for full integration into Schema.org, pending implementation feedback and adoption from applications and websites.

Thing > Property > identifier > nsn

Indicates the NATO stock number (nsn) of a Product. Indicates the NATO stock number (nsn) of a Product.
Values expected to be one of these types
Text
Used on these types
Product
Super-properties
identifier

Source

https://github.com/schemaorg/schemaorg/issues/2126