UNSPSC 31161837: Split washer

A type of washer that helps keep a screw from backing out due to vibration.

UNSPSC 31161837 Split washer is a Commodity code that names a single fastener product, but recent state and local solicitations tagged under this code show minimal alignment with split washers as a discrete line item. Instead, the code appears in vastly broader procurement activity—from transit authority bolt purchases to comprehensive water treatment facility construction—suggesting either systematic miscoding by issuing bodies or a mismatch between the code's nominal scope and its actual application in state and local procurement systems. When split washers do appear as a distinct need, they are typically bundled with other fasteners and hardware rather than solicited as a standalone product; state and local governments acquire them as components of maintenance, repair, or capital construction work rather than through dedicated commodity procurements.

The recent opportunities in this code span transit authorities and municipal water systems, with no pattern suggesting repeat buyers or concentrated geographic activity around split-washer purchasing. The Dallas Area Rapid Transit Authority (DART) posted a bolt purchase order (2100828) with a due date of September 11, 2026, soliciting through BONFIRE with FOB Destination freight terms and Net 30 payment; the City of Lavonia, Georgia posted a comprehensive water treatment plant upgrade project (PE66940NONST2026000000005) due May 26, 2026, involving construction services, DBE participation goals, and Davis-Bacon prevailing wage requirements. The code shows little signal of active, focused procurement activity around split washers as a product category. Business development professionals should verify whether opportunities tagged to this code are mislabeled or whether the customer organizations are using the code as a catch-all for fastener and hardware work beyond its stated scope.