UNSPSC 31391605: Aluminum medium precision machining

Aluminum objects that have been machined to tolerances equal to or greater than 0.020 mm for major dimensions

UNSPSC 31391605 Aluminum medium precision machining is a Commodity code that state and local governments use to tag procurement of machined aluminum components and finished products meeting engineered specifications. The recent solicitation activity under this code shows water utility infrastructure procurement, where state and local water districts and municipalities source finished aluminum or aluminum-alloy products manufactured to precision tolerances. The issuing bodies soliciting under this code include city purchasing offices acting on behalf of water utilities and municipal infrastructure replacement projects. Work solicited under the code ranges from standard utility hardware to engineered assemblies requiring dimensional accuracy, material certification, and conformance to technical specification sheets provided by the buyer.

The City of Midland, Texas, acting on behalf of Mason County, posted an IFB on March 26, 2026, for 71 fire hydrants—45 units of 4-foot hydrants, 20 units of 5-foot hydrants, and 6 units of 6-foot hydrants—under the U25-01 Fire Hydrant Replacement Project, with bids due April 9, 2026. Bidders were required to submit itemized pricing with unit prices, descriptive literature, delivery timeframes, and brand and product numbers through the Bonfire e-procurement system. Delivery was F.O.B. Midland with freight prepaid, and the City reserved the right to award by item or by total bid to the lowest responsible bidder or the bidder offering best value. Local preference under Texas Local Government Code Section 271.9051 applied, allowing the City Council to award to a local bidder whose price fell within five percent of the lowest non-local bid. No set-asides for disadvantaged enterprises were specified, and all bidders were required to maintain workers' compensation insurance with the City named as an additional insured.