UNSPSC 31163029: Friction clip coupling

A coupling that is tightened by pounding at both ends of the soft steel ring. After covering the connection part of both axes has the cast iron split muff with the surrounding conical shape.

UNSPSC 31163029 Friction clip coupling is a Commodity code that captures specialized mechanical fastening and connection components used in water infrastructure and facilities maintenance. Recent state and local solicitations under this code reflect procurement of pump motor repair, rebuild, and replacement services where friction clip couplings function as essential connectors between motors and pumps. West Basin Municipal Water District (Los Angeles County, California) posted an RFP in October 2026 for on-call pump and motor repairs and replacements across eight recycled water and pumping facilities, with a $1,000,000 not-to-exceed contract value over two years and a potential one-year extension. The scope spans electric motors ranging from 1.5 to 800 horsepower and requires contractors to deliver comprehensive repair, rebuild, and replacement services with eighteen-month warranties, post-installation performance testing including vibration analysis, and pick-up and return delivery. Issuing bodies soliciting under this code include municipal water districts and county government agencies responsible for water infrastructure and facilities maintenance; West Basin appears as a repeat buyer focused on regional water recycling and pumping operations.

Activity under the code concentrates in California, with the West Basin opportunity representing current market focus in Los Angeles County. A secondary opportunity from DeKalb County, Georgia (posted June 2026, ITB 2026-076-ITB, bids due July 13, 2026) for reconstruction of the DeKalb Tennis Center included IT and low-voltage infrastructure installation but does not reflect friction clip coupling procurement relevant to the code's core scope. The California water district activity signals the primary procurement stream — state and local governments buying coupling components and associated motor-pump repair services for recycled water systems and regional water recycling plants. Contractors pursuing this code should emphasize motor repair certification, local facility capabilities, and experience across variable horsepower ranges and pumping configurations typical of municipal water operations.