UNSPSC 31163004: Miniature couplings

UNSPSC 31163004 Miniature couplings is a Commodity code covering small-diameter hydraulic and pneumatic connection components used in water distribution, wastewater infrastructure, and utility systems. State and local governments procure these fittings as line-item components within larger water main replacement, sewer rehabilitation, and utility infrastructure projects rather than as standalone products. The recent solicitation record shows activity concentrated among county utilities, municipal water departments, and sanitation districts acquiring couplings as part of coordinated repair and replacement scopes; the City of Marietta, Georgia, and Santa Clara County Sanitation District No. 2-3 represent typical buyers issuing ITBs and RFQs for bundled water service components and sewer mainline restoration work.

Recent opportunities span Florida and California, with secondary activity in Georgia. Pinellas County, Florida issued ITB 260652ITBC (due November 5, 2026) for sewer and water main improvements including 12-inch PVC sanitary sewer pipe and 6-inch water main replacement; Santa Clara County Sanitation District No. 2-3 issued an IFB (due September 17, 2026) for structural defect repair including removal and replacement of vitrified clay and cast iron pipe with PVC and HDPE equivalents; and the City of Marietta, Georgia issued BL121-26 (due September 22, 2026) as an annual contract for water service saddles, couplings, clamps, and valves. DeKalb County, Georgia solicited quick insertion valves and related fittings under a three-year multiyear contract (ITB 2026-034-ITB, due August 27, 2026). The code shows modest activity overall — couplings typically appear as secondary line items within larger infrastructure projects rather than as primary procurement drivers, and opportunities are driven by aging water and sewer system rehabilitation rather than new construction.