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The BMI USA 10489 is a 1/2 inch black steel pipe nipple designed for single-run piping applications in residential and commercial systems. This close-pattern nipple is manufactured from steel with a black finish, making it suitable for gas distribution, fire suppression, and general plumbing where black iron fittings are specified. Licensed plumbers and pipefitters install this type of fitting when connecting threaded pipe assemblies in low-pressure systems. At 2.41 pounds, it carries the mass expected of a full-length steel nipple in this size class.
This nipple is used in a range of piping configurations including gas supply lines, water distribution headers, and industrial process lines where NPT-threaded black steel fittings are required. It is commonly found in residential gas piping rough-ins, boiler rooms, and light commercial mechanical rooms. The 6 inch length and 1/2 inch nominal size suit standard riser and branch connections in these environments.
Designed as an OEM-style replacement or standard component for 1/2 inch NPT threaded black steel piping assemblies in residential and commercial gas, plumbing, and mechanical systems.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes, including the IPC and IFGC where gas service is involved. Shut off the gas or water supply and depressurize the line before threading or removing any fittings. Use an appropriate pipe thread sealant or PTFE tape rated for the service medium when making up threaded connections. Inspect threads for damage before installation and do not over-tighten, which can crack fittings or strip threads.
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