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The BMI USA 10689 is a black steel pipe nipple designed for use in threaded piping systems across plumbing, gas, and mechanical applications. This single-run nipple measures 1 inch in diameter and 6 inches in length, providing a straight threaded connection between two fittings or pipe sections. Constructed from steel with a black finish, it delivers the durability and pressure resistance required in demanding trade installations. Licensed plumbers and pipefitters install this type of fitting as part of gas distribution, water supply, and general industrial piping assemblies.
This nipple is suited for residential and light commercial piping systems where a short, rigid threaded connector is needed. Common applications include gas supply lines, water distribution headers, and mechanical room piping. The black finish is standard for gas piping applications and distinguishes this fitting from galvanized alternatives used in water service. It threads directly into standard NPT fittings, valves, and pipe unions.
Designed as an OEM-style replacement or standard-install fitting for threaded steel piping systems using 1-inch NPT connections in plumbing, gas, and mechanical piping assemblies.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local plumbing and mechanical codes, including IFGC requirements for gas piping systems. Shut off gas or water supply and depressurize the system before removing or installing any threaded fitting. Apply an appropriate thread sealant or PTFE tape rated for the service medium before threading the nipple into fittings. Do not over-tighten, as this can damage threads or crack cast fittings.
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