UNSPSC 31171904: Silent chain sprocket

A type of sprocket with geared teeth for use with silent chain.

UNSPSC 31171904 Silent chain sprocket is a Commodity code that encompasses small fastening and mechanical components used in a variety of state and local infrastructure, facility, and operational applications. The recent procurement activity under this code shows minimal direct alignment with the nominal scope — recent solicitations tagged to this code include stainless steel diaphragm plates (Texas A&M University System), sign posts and mounting hardware (Harris County), screw fasteners (Harris County), door locks and hinges (Monroe County and Harris County), HVAC maintenance components, ADA ramp hardware, and waste management and landfill services. While some of these items nominally include fastening hardware, most solicitations center on larger systems, services, or finished goods rather than silent chain sprockets as discrete products. Issuing bodies are predominantly Texas county governments — Harris County appears repeatedly across multiple ITBs — along with special-purpose entities like the Texas A&M University System and the Monroe County Board of County Commissioners.

Geographic activity is concentrated in Texas, specifically Harris County and surrounding jurisdictions, with a secondary instance in Monroe County, Florida. Representative recent solicitations include the Texas A&M University System's ITB for stainless steel diaphragm plates (bids due October 28, 2026), Harris County's ITB for screw fasteners and related items (bids due August 24, 2026), and Harris County's ITB for door lock replacement services and related items at juvenile detention facilities (bids due June 15, 2026). The code shows little evidence of consistent procurement of silent chain sprockets as a standalone product line in recent state and local activity, suggesting limited relevance or potential mislabeling in the underlying opportunity data.