UNSPSC 31163031: Sellers coupling

A coupling that tightens the conical shaped wedge with the slit between the two axes and uses the friction force with the shaft by the tightening of the taper the bolt.

UNSPSC 31163031 Sellers coupling is a Commodity code that covers pump and motor coupling components and repair services procured by state and local water, wastewater, and facility management agencies. Recent solicitation activity shows that state and local governments are buying on-call repair, rebuild, and replacement services for electric motors and pumps at water recycling and treatment facilities, rather than coupling components alone. Issuing bodies include municipal water districts, county governments, and special-purpose facility management authorities. West Basin Municipal Water District in Los Angeles County exemplifies the water-sector buyer profile, soliciting comprehensive motor and pump repair services with attached logistics (pick-up and delivery, on-site removal and reinstallation, performance testing, and eighteen-month warranty) under fixed-cost-plus markup pricing. Contractors competing in this code typically must hold California Department of Industrial Relations Public Works Contractor Registration or equivalent state licensure, maintain five or more years of experience in motor repair, provide multiple references, and carry substantial commercial general and professional liability coverage. Many opportunities include set-aside or preference points for Small Business Enterprises, Local Business Enterprises, and Veteran-Owned Business Enterprises.

Recent activity concentrates in California and Georgia. West Basin Municipal Water District posted RFP RFPTH0143 for on-call pump and motor repair services across eight recycled water and pumping facilities, with a not-to-exceed amount of $1,000,000 over a two-year initial term plus potential one-year extension, and proposals due October 1, 2026, at 2:00 PM. DeKalb County, Georgia posted ITB 2026-076-ITB for reconstruction of the DeKalb Tennis Center including IT and low-voltage infrastructure (conduit, cabling, raceways, and terminations), with bids due July 13, 2026; this opportunity falls outside the coupling and pump repair scope and represents a mismatch with the code's nominal category. The code shows limited recent activity overall, with the West Basin opportunity as the primary signal for active state and local procurement in pump and motor repair services.