An NSN is a 13-digit numeric code, identifying all the ‘standardised material items of supply’ as they have been recognised by all NATO countries including United States Department of Defense.
It allows for any each of the 29 NATO militaries to purchase DroneGun MKII on a ‘military catalogue’ basis, significantly simplifying the procurement process.
The NSN was assigned following a request for such assignment from the United States Department of Defense.