NIGP 593: Nuclear Equipment Components, Accessories and Supplies

NIGP 593 Nuclear Equipment Components, Accessories And Supplies is a Class code encompassing chemical-resistant parts, fittings, and delivery systems for disinfection and treatment applications in municipal water systems. State and local governments purchase under this code primarily plastic components—PVC, CPVC, polypropylene, polyethylene, and PTFE piping, unions, valves, tees, elbows, adaptors, and tubing in multiple diameters—designed to handle corrosive chemical agents such as sodium hypochlorite used in potable water disinfection. Municipal water utilities dominate solicitation activity under the code. Tucson Water, operating within Pima County and the City of Tucson, Arizona, issued IFB No. 240040 for chemical-resistant parts and equipment to support sodium hypochlorite injection across over 200 active wells in its potable water distribution system, with the City anticipating multiple awards across different part categories. The procurement required vendors to meet Section 3 workforce development obligations (25 percent of labor hours directed to Section 3 Workers) and comply with HUD guidelines for business licensing and insurance, reflecting the federal funding stream typical in water-system upgrades.

Recent activity clusters in Arizona. Beyond the Tucson Water disinfection-system procurement, the geographic scope of identifiable state and local opportunities under NIGP 593 remains narrow; the source provides no additional representative solicitations from other jurisdictions or states. The Tucson Water IFB represents the only concrete recent opportunity visible in the dataset, with a response deadline that has passed (September 21, 2023). No current open opportunities meeting the scope of this code appear in the most recent postings. Business development professionals should monitor Arizona water utility RFPs and municipal water-system upgrades for future disinfection-system component procurements, particularly in jurisdictions managing large distributed networks requiring chemical injection infrastructure.