UNSPSC 31161818: Seal washers

UNSPSC 31161818 Seal washers (Commodity) encompasses fasteners and sealing components that state and local governments procure for maintenance, repair, and construction work across transit systems, water utilities, and municipal infrastructure. The code sees active use by transit authorities and municipal water departments for both routine equipment maintenance (replacement bolts, washers, and fasteners for transit vehicles and equipment) and capital improvement projects requiring bulk fastener supply. Issuing bodies include regional transit authorities such as the Dallas Area Rapid Transit Authority and municipal utilities managing water treatment and distribution systems.

Recent activity concentrates in Texas and Georgia. The Dallas Area Rapid Transit Authority solicited bolts and fasteners under Purchase Order 2100828 (RFQ, due September 11, 2026), specifying 1/2"-13 X 2-3/4" bolts with FOB Destination shipping, Net 30 payment terms, and delivery as a critical performance metric. The City of Lavonia, Georgia posted a sealed competitive bid for Water Treatment Plant 2026 Improvements (IFB, due May 26, 2026), a comprehensive facility upgrade spanning two sites that includes renovation of filtration units, settling basins, and chemical feed systems—work that typically requires substantial quantities of fasteners, sealing washers, and related hardware as part of the equipment installation and connection specifications. Both opportunities reflect procurement of standardized fastener components integrated into broader maintenance or construction contracts, with emphasis on timely delivery and compliance with shipping and payment terms.