UNSPSC 31161818: Seal washers

UNSPSC 31161818 Seal washers is a Commodity code representing individual fastening hardware components used across municipal infrastructure, utilities, and transportation systems. The recent opportunities show a stark mismatch between the code's nominal scope and actual procurement activity: a water treatment plant construction project in Georgia tagged under this code primarily involves comprehensive facility upgrades (pump stations, mixers, basins, filters, chemical systems, and storage tanks) rather than seal washers as discrete line items, while a Dallas Area Rapid Transit Authority purchase order for lock washers 7/16" medium (package of 100) aligns directly with the code's fastening-hardware scope. State and local buyers under this code include municipal water authorities, transit agencies, and city public works departments. The code sees activity from both specialized utility operators and general transportation authorities acquiring fastening components for maintenance and capital projects.

The geographic spread covers at least Georgia and Texas based on recent solicitations. The Lavonia, Georgia water treatment facility project (Solicitation PE66940NONST2026000000005, sealed competitive bid, due May 26, 2026, with a pre-bid conference May 7, 2026) represents a large municipal infrastructure undertaking funded through the Georgia Environmental Finance Authority State Revolving Fund and subject to Davis-Bacon Act prevailing wage requirements and Build America, Buy America material sourcing rules. The DART procurement (Solicitation 2097555, due January 28, 2026) for packaged lock washers reflects routine consumable purchasing by a major transit authority. The code shows limited recent activity relative to broader procurement volume, suggesting seal washers and similar fastening hardware are typically embedded within larger construction or maintenance contracts rather than procured as standalone commodity orders at scale.