UNSPSC 31391503: Steel standard precision machining

Steel objects that have been machined to tolerances equal to or greater than 0.050 mm for major dimensions

UNSPSC 31391503 Steel standard precision machining is a Commodity code that in recent state and local procurement activity covers the supply of fabricated steel water infrastructure components, specifically fire hydrants meeting municipal utility standards. The City of Midland, Texas, acting on behalf of Mason County, solicited 71 fire hydrants in mixed heights (4-foot, 5-foot, and 6-foot units) conforming to attached technical specifications, with bidders required to submit itemized unit pricing, product literature, delivery timeframes, and brand identification. Issuing bodies under this code are primarily municipal water utilities and county governments procuring replacement or new-build fire hydrant inventory for infrastructure projects.

The single recent opportunity in the source—City of Midland's IFB 26003721 posted March 26, 2026, with response due April 9, 2026—originated in Texas. The procurement applied local preference provisions under Texas Local Government Code Section 271.9051, allowing the City Council to award to a local bidder within five percent of the lowest non-local price based on economic development factors. All hydrants required F.O.B. delivery to Midland with freight prepaid and included in bid price, and bidders had to carry workers' compensation insurance with the City named as additional insured. No incumbent vendor, set-aside designation, or budget range was disclosed. The sparse activity in the source suggests limited recent solicitation volume under this specific code, or that state and local water utility procurement for fire hydrants may be tagged inconsistently across the UNSPSC taxonomy.