The Standard Product Nomenclature System is a system of assigning model numbers and parts numbers to ships and equipment. It was originally developed by Ketsurui Zaibatsu in YE 24 for the Star Army of Yamatai but since then it has become a de facto international standard and is used by most major manufacturers in the Kikyo Cluster.
Here are some examples of products using the standard nomenclature system:
The most common place to physically find an item's nomenclature is on Star Army Equipment Labels or their equivalent.
Some nations have a “personalized” version of the Standard Product Nomenclature System.
Nomenclatures (Model Numbers) are assembled like this:
Example: Ke-M3-1b (Kylie) would be KFY's the 2nd version of the 1st design of their 3rd Class of mecha.
Using the main cannon on the Sakura as an example, it would be a Ke-S3-W2800.
Ke - Manufacturer S3 - Ship Class system is originally for (Sakura is the Ke-S3 series) W - Weapons System
28 - Year of the Empire on the Yamataian Calendar 00 - 1st system of this type created in the above year (01 would be the second, etc)
The Standard Product Nomenclature System went through some changes before reaching its final state. Some of the products in YE 24 or YE 25 used an older style of designation that is now obsolete.