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The BMI USA 4669 is a lead-free brass threaded pipe nipple designed for use in potable water, plumbing distribution, and general fluid-handling systems. Machined from solid brass with a red finish, this nipple measures 1 inch in diameter and 9 inches in length, making it well suited for close-quarter runs and branch connections. The all-brass construction resists corrosion in both hot and cold water service. Its lead-free designation meets requirements for use in drinking water applications under current plumbing codes. Licensed plumbers and pipefitters install this fitting as a standard component in supply and distribution piping assemblies.
This nipple is a practical choice for residential and light commercial plumbing installations where a 1-inch threaded connection is required. Common applications include water supply lines, boiler piping, irrigation manifolds, and hydronic heating systems. The 9-inch length provides enough extension for installations that require additional reach between fittings, valves, or fixtures without the need for a union or coupling.
Designed as an OEM-style replacement or new-installation fitting for standard 1-inch NPT threaded plumbing systems in residential and light commercial applications.
Installation is performed by a licensed plumber following local plumbing code and IPC guidelines. Shut off the water supply and depressurize the line before threading this nipple into place. Apply thread sealant tape or pipe dope to the male threads before assembly to ensure a leak-free joint. Do not over-tighten threaded brass fittings, as excessive torque can crack the fitting body.
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