UNSPSC 31163021: Universal flexible coupling

A type of coupling where the angular or offset misalignment of the shaft reaches values which cannot be accommodated by flexible couplings.

UNSPSC 31163021 Universal flexible coupling is a Commodity code that in recent state and local solicitations covers pump and motor repair, rebuild, and replacement services rather than the coupling components themselves. West Basin Municipal Water District is procuring on-call emergency and routine repair, rebuild, and replacement services for electric motors ranging from 1.5 to 800 horsepower and associated pumps across eight recycled water and pumping facilities in Los Angeles County. Services include on-site removal and reinstallation, comprehensive documentation with before-and-after photographs and failure analysis, post-installation performance testing with vibration analysis, pick-up and delivery, and minimum eighteen-month warranty on equipment, parts, labor, and materials. Contractors must respond to written service requests within five business days and deliver work within one hour during business hours and twelve hours outside business hours. Water districts and municipal utility agencies appear to be the primary issuing bodies under this code; the West Basin solicitation offers up to 10% cumulative price reductions or evaluation-point credits for Small Business Enterprises, Local Business Enterprises, and Veteran-Owned Business Enterprises.

Recent activity concentrates in California, specifically Los Angeles County, where West Basin Municipal Water District posted RFP RFPTH0143 with a response deadline of October 1, 2026, at 2:00 PM and a total contract not-to-exceed value of $1,000,000 over a two-year initial term with a potential one-year extension. Qualified contractors must demonstrate a minimum of five years' experience in electric motor repair, maintain valid California Department of Industrial Relations Public Works Contractor Registration, provide five minimum references, and maintain a local repair facility. Insurance requirements include commercial general liability of $2,000,000, business automobile liability of $2,000,000, workers' compensation of $1,000,000, and professional liability of $2,000,000, naming West Basin as additional insured. A non-mandatory pre-proposal conference was held September 16, 2026. A second opportunity in the recent block, DeKalb County's ITB 2026-076-ITB for DeKalb Tennis Center reconstruction, does not align with the coupling code scope and appears miscoded; the work involves IT and low-voltage infrastructure installation rather than mechanical coupling repair or motor services.