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The ASC Engineered Solutions 4354002070 is a black steel seamless extra heavy (XH) pipe nipple sized at 1 inch by 5 inches. Manufactured from A106B-grade black steel, this nipple is built for demanding piping systems that require greater wall thickness than standard pipe fittings provide. The extra heavy schedule rating makes it appropriate for higher-pressure applications in gas distribution, steam, and industrial process piping. Licensed plumbers and pipefitters install this type of nipple as a close connector between fittings, valves, and threaded pipe assemblies where durability and pressure integrity are critical.
This nipple is suited for commercial and industrial piping installations, including gas supply lines, steam systems, and mechanical room piping. Its seamless construction eliminates the longitudinal weld seam, reducing potential weak points in the pipe wall. At 1 inch by 5 inches, it fits common branch and mainline configurations found in light commercial and heavy-duty residential mechanical systems. The black steel finish is standard for gas and non-potable fluid piping where corrosion protection comes from applied coatings or system conditions rather than galvanizing.
Designed as a standard-thread replacement or new-installation nipple compatible with 1-inch NPT threaded fittings, valves, and couplings used in extra heavy schedule black steel piping systems.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes, the International Fuel Gas Code (IFGC), or the International Plumbing Code (IPC) depending on the service application. Shut off and depressurize the supply line and verify the system is free of pressure before threading or removing any fittings. Use appropriate thread sealant rated for the service medium — gas-rated pipe dope or PTFE tape for gas lines. Inspect threads for damage before assembly and do not overtighten, as black steel threads can gall or crack if forced.
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