UNSPSC 31121712: Bronze centrifugal machined castings

UNSPSC 31121712 Bronze centrifugal machined castings is a Commodity code that encompasses water utility infrastructure components, particularly cast iron and ductile iron assemblies and repair hardware sourced through state and local procurement. Recent opportunities show state and local governments buying functional water system components—curb boxes with cast iron construction and associated assemblies, plus stainless steel pipe repair clamps for standard cast iron and ductile pipe applications—rather than raw bronze castings. The City of Madison Water Utility, procuring through its municipal finance and purchasing office, has posted multiple RFQs in this space, indicating that smaller to mid-sized municipal water utilities are active buyers of these finished or semi-finished components under this code classification.

Madison, Wisconsin, has posted the most recent activity in the source record. The City of Madison Finance Department's Purchasing Services, on behalf of the Madison Water Utility, issued RFQ 5518 on March 3, 2026, for 175 units of stainless steel pipe repair clamps across multiple sizes (4" through 12" diameters), with quotations due March 17, 2026, at 2:00 PM CST; acceptable manufacturers included Smith-Blair, Mueller, ROMAC, Ford, Cascade, Hymax, A.Y. McDonald, and JCM. In the same posting cycle, the City issued RFQ 5517 for 150 complete curb box assemblies with cast iron construction, tar coating, and brass fittings per Bingham & Taylor model 94F specifications, also due March 17, 2026. Both solicitations offer a local vendor preference for registered Madison suppliers and require FOB delivery to the utility's service address. No incumbent vendors, set-aside designations, or explicit budget ranges appear in the available documentation.