FSC (Federal Supply Classification)

Federal Supply Classification (FSC) is the four-digit coding system the US federal government uses to group supply items, originally developed for military logistics and now embedded within the broader Product and Service Codes (PSC) framework that covers all federal procurement actions.

What is FSC?

FSC organises tangible supply items into groups and classes. The first two digits identify a group (a broad commodity family such as aircraft, weapons, or medical equipment) and all four digits together form the class (a specific type within that group). Class 6505, for example, covers drugs and biologicals. The system was developed by the Department of Defense to standardise stock numbering across military branches and has been extended to cover civilian agency supply purchases as well. FSC codes form the goods portion of psc-product-and-service-codes-us-federal: when a federal contract action involves the purchase of a supply item, the PSC code used is the relevant FSC class code. Service and research-and-development contracts use different PSC code ranges that do not overlap with FSC.

Suppliers delivering physical goods to US federal agencies, particularly defense-related items, encounter FSC most directly through the Defense Logistics Agency (DLA) and military department procurement channels, where FSC classes determine stocking and specification requirements.

Why FSC matters for bidders

If you supply physical goods to US federal agencies or defense buyers, FSC determines which supply class your product falls into, which in turn affects the specifications, testing standards, and approved supplier lists that govern that class. Products submitted for federal stock numbering through the Defense Logistics Agency are catalogued by FSC class, and knowing your product's FSC class helps you locate existing approved sources (potential teaming partners or competitors) and the relevant military specifications that define quality requirements. For companies researching the US defense supply market, filtering USASpending.gov award data by FSC class reveals the size of the market, the key buying commands, and the incumbent suppliers in your product category.

FAQ

How is FSC related to PSC?

FSC codes are the goods-specific subset of the broader PSC system. When a federal contract involves a supply item, its PSC code is the relevant FSC class code; services and R&D use different, non-FSC PSC ranges.

How many digits is an FSC code?

FSC codes are four digits: the first two identify the group and all four together identify the specific supply class.

Do civilian agencies use FSC?

Yes. Although FSC originated in military logistics, it applies across all federal supply purchasing. Civilian agencies buying physical goods through GSA schedules or open-market procurement use the same FSC-derived PSC codes.