UNSPSC 31163013: Shaft coupling

A device for providing a connection, readily broken and restored, between two adjacent rotating shafts.

UNSPSC 31163013 Shaft coupling is a Commodity code. State and local governments buy mechanical power-transmission components — primarily rotating-shaft couplings that connect and align shafts in industrial equipment, HVAC systems, pumps, generators, and facility infrastructure. The code captures rigid and flexible couplings, elastomeric and fluid couplings, and related shaft-connection hardware used in maintenance, repair, and new construction of public facilities. Issuing bodies sourcing under this code include county governments, municipalities, and special-purpose districts managing public buildings, utilities, transit systems, and recreation facilities. Procurement typically takes the form of RFQ or ITB notices for equipment replacement, facility upgrades, or competitive bidding within larger capital projects.

Recent activity is sparse. The one recent opportunity in the dataset — DeKalb County's ITB 2026-076-ITB for Reconstruction of DeKalb Tennis Center (response due July 13, 2026) — is tagged with this code but centers on IT and low-voltage infrastructure installation (conduit, cabling, pathways, device terminations) rather than mechanical shaft couplings. The mismatch suggests either tagging error or incidental coupling hardware as a small component within a broader electrical infrastructure scope. Geographic activity data is insufficient to characterize regional concentration. The code shows minimal documented procurement velocity in state and local markets at present.