UNSPSC 31161829: Retaining washer

A type of washer used in applications requiring pre-assembly of the screw and washer, to reduce final assembly cost.

UNSPSC 31161829 Retaining washer is a Commodity code that captures fasteners—primarily bolts, washers, and related hardware—that state and local governments procure as maintenance stock, replacement parts for vehicles and equipment, and components for infrastructure projects. The recent solicitation activity under this code shows purchasing departments and transit authorities acquiring standard industrial fasteners to support fleet maintenance, facility upkeep, and capital improvement work. Issuing bodies include regional transit authorities such as the Dallas Area Rapid Transit Authority (DART) and municipal utilities undertaking facility upgrades. The work is straightforward procurement of off-the-shelf hardware items, typically through purchase orders with firm delivery and payment terms rather than complex construction or service contracts.

DART's September 2026 bid for 1/2"-13 X 2-3/4" bolts (Purchase Order 2100828, due September 11, 2026) represents the most direct recent opportunity under the code, with FOB Destination shipping, Net 30 payment terms, and the standard requirement for triplicate invoicing and strict delivery performance. A second opportunity from the City of Lavonia, Georgia (sealed bid due May 26, 2026) for water treatment plant improvements included fasteners as a minor component within a larger construction project but did not isolate hardware procurement as the primary scope. Activity is concentrated in the South and Southwest, with Texas and Georgia showing recent solicitations. The code draws minimal but recurring activity from transit authorities and municipal utilities where routine hardware replacement and capital project support drive steady demand for standard fasteners.