UNSPSC 31161804: Curved washers

UNSPSC 31161804 Curved washers (Commodity) covers fastening components that state and local procurement offices buy for equipment maintenance, capital repairs, and construction support—though recent state and local solicitations tagged with this code show limited direct activity. The Dallas Area Rapid Transit Authority (DART) posted a purchase order in September 2026 for bolts (1/2"-13 X 2-3/4"), which the system coded under curved washers despite the mismatch; DART required FOB Destination shipping with freight included, Net 30 payment terms, and triplicate invoice submission. The second recent opportunity, a City of Lavonia water treatment plant improvement project in Georgia, involves comprehensive infrastructure construction rather than discrete fastener procurement and does not align with the commodity scope. State and local procurement under this code, when it occurs, typically flows through transit authorities, municipal utilities, and county maintenance operations as routine spare-parts and repair orders rather than major project solicitations.

The geographic spread and recent opportunity activity remain sparse. The two most recent tagged opportunities appear in Texas (DART) and Georgia (Lavonia), but neither represents typical curved-washer procurement—DART's bolt order is a standard parts buy, while the Lavonia project is construction-related and misaligned with the commodity code. No standout repeat buyers or regional concentration pattern emerges from the available record. The code shows minimal current state and local procurement velocity, suggesting either light demand for curved washers as discrete line items or a data-quality issue in how opportunities are being tagged to this commodity classification.