Federal Supply Classes

Browse every NSN catalog item grouped by 4-digit Federal Supply Class — the DoD's primary classification for materiel.

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600+ CLASSES

Category overview

Federal Supply Classes sourcing context

Federal Supply Class listings organize catalog lines around the four-digit material classes used in NSN procurement. Use this index when an RFQ starts with a class of supply rather than a final part number, then narrow into manufacturers, CAGE codes, and matching stocked lines.

Manufacturers operating in this listing

Guaranteed on-time delivery
Confirmed purchase orders stay tracked through U.S. fulfillment, with procurement watching ship dates through delivery.
5,100+ stocked manufacturers
A stocked OEM network keeps alternatives visible when legacy NSNs, CAGE codes, or superseded part numbers need a fast cross-check.
Complete purchasing solutions
One RFQ can combine hard-to-source lines, quote routing, buyer follow-up, and basket updates without forcing a checkout flow.
15-minute quote response
Requests route to the procurement desk around the clock, keeping urgent aviation and defense requirements inside the response window.
Customized & user-friendly
Search by NSN, NIIN, CAGE, FSC, or part number, then move directly from catalog context into a quote-ready line item.