For large sectors, the absence of a standardized method for identifying and sourcing regularly used parts can turn routine tasks like acquiring a screw or valve into a significant logistical challenge. This is especially true when operations span multiple organizations and countries, so to address such issues for military and defense purposes, the United States Department of Defense (DoD) developed the Federal Supply Classification (FSC) system in the mid-20th century. With this in mind, the FSC system also involves the use of Federal Supply Groups (FSGs) to cluster items under logical categories, which we will explore in this blog to highlight how they simplify and strengthen military logistics.
Categorizing all items of supply used by the military and federal agencies, the FSC system was created to reduce duplication in cataloging and make procurement processes easier. The system was later integrated into the NATO Codification System (NCS), forming the basis for NATO Supply Grouping for interoperability across multinational logistics networks.
Each item managed under this framework is assigned a 13-digit National Stock Number (NSN) that starts with four numbers to indicate its FSC. The first two digits represent the FSG, which then joins with the last two digits to make up the FSC. For example:
FSGs are the first categories meant to encapsulate more specific FSCs that organize particular NSN supplies. When the FSC system was first introduced, groups were established by analyzing federal and military procurement requirements across a wide range of sectors. Categories were then defined based on a combination of function and part type, intended to be broad enough to remain flexible as technology advanced.
Moreover, new FSGs are introduced or existing ones updated when technological, material, or system advancements produce items that do not neatly fit into any current group or class. The decision to add or modify groups arises through review processes involving the Defense Logistics Agency (DLA) and other cataloging authorities under the NATO Codification System.
Some notable FSGs include:
In practice, a military depot sourcing replacement engine accessories would look under FSG 29 to access relevant NSNs and search from that point, while an aviation maintenance team requiring fasteners would turn to FSG 53.
With thousands of suppliers and millions of parts circulating through the defense sectors, using the FSG system to manage items of supply presents advantages like:
In summary, FSG codes eliminate confusion in the sourcing process by presenting overarching groups to identify and procure parts through. That being said, leveraging this system to its fullest requires a procurement partner that accurately lists quality products. As part of the ASAP Semiconductor family of websites, Parts Delivered Today is a one-stop source for thousands of items, all of which are discoverable with our search tools and catalogs by FSC, FSG, NSN, manufacturer, and other common designations.
Excellence is the fundamental cornerstone of our operations, so you can expect to only secure items from trusted suppliers and manufacturers when you shop with us. Furthermore, our customers always benefit from swift, competitively priced fulfillment options that are tailored to fit their specifications. To kick off procurement for your needs or to discuss our diverse services, connect with our experts at your convenience!
Share
The only independent
“We Proudly Support Intrepid Fallen Heroes Fund that serves United States Military Personal experiencing the Invisible Wounds of War : Traumatic Brain Injury (TBI) and Post Traumatic Stress (PTS). Please visit website (www.fallenheroesfund.org) and help in their valiant effort”.
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
Request for Quote
