UNSPSC 31161815: Shoulder washers

UNSPSC 31161815 Shoulder washers is a Commodity code covering fastening hardware components used across state and local infrastructure and transit operations. State and local governments buy these washers as replacement parts and consumables for routine maintenance, repairs, and capital projects spanning water treatment, wastewater, transportation, and building systems. The code captures both small-package direct buys of standard fasteners and larger procurement events embedded within construction or equipment-upgrade projects.

The recent opportunities show a scattered issuing-body mix: the City of Lavonia, Georgia (a municipal water utility) and the Dallas Area Rapid Transit Authority (DART, a regional transit authority) both tagged activity under this code in early 2026. DART's January 2026 purchase order for Washer Lock 7/16" Medium (100-pack, solicitation 2097555, due January 28, 2026) represents typical routine hardware procurement, while the City of Lavonia's April 2026 Water Treatment Plant 2026 Improvements IFB (solicitation PE66940NONST2026000000005, due May 26, 2026) is a capital project in which washers and fasteners appear as subordinate line items within a much larger facility upgrade. Geographic activity is evident in Georgia and Texas; the source does not support characterization of broader regional concentration. The DART procurement is open and competitive with no set-aside designation noted; the Lavonia project carries a 4.0% DBE participation goal and is subject to prevailing wage and Build America, Buy America requirements.