The National
Codification Bureau (NCB) within each country centrally assigned
their national NSNs. The assignment of an NSN fixed the identity of
each distinctive item of supply. All NSNs were uniform in
composition, length, and structure. Each was represented by a
13-digit number, made up of 3 unique parts:
- the first four digits were the
NATO Supply Classification (NSC) code, which relates the item to
the group and class of similar items
- the next two digits indicated
the assigning NCB code (each country had its own two-digit NCB
code-the United States used "00" and "01", Canada used "21")
- the final seven digits were
assigned sequentially and had no inherent significance. However,
the number related to one and only one item of supply within the
codifying country.
Netting Drill
- a procedure carried out by wireless (radio) operators; before
commencing an operation, radios throughout an armoured regiment (or
individual squadrons) or infantry battalion (and individual
companies) would carry out netting drills to ensure all wireless
sets were tuned to the same frequency and able to communicate with
each other.