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The ASC Engineered Solutions 4354000860 is a black steel seamless extra heavy (XH) pipe nipple sized at 3/8 inch by 4 inches. Manufactured from A106B black steel, this nipple is designed for use in high-pressure or demanding piping applications where standard-weight fittings are not sufficient. The seamless construction eliminates a weld seam, improving pressure integrity and reducing potential leak points. Plumbers, pipefitters, and mechanical contractors install this type of nipple to connect sections of pipe or transition between threaded fittings in gas, steam, or fluid distribution systems.
This nipple is suited for commercial and industrial piping systems where extra heavy wall thickness is specified. Common applications include steam lines, compressed air distribution, gas supply piping, and other high-pressure fluid systems. The 3/8 inch by 4 inch dimension makes it appropriate for close-quarter runs requiring a short, threaded extension between valves, unions, or fittings. It is an import-origin product, making it a cost-effective option for projects where domestic certification is not required by the specification.
Designed as an OEM-style replacement or new-installation fitting for threaded black steel piping systems using 3/8 inch nominal pipe connections in commercial or industrial settings.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the International Fuel Gas Code (IFGC) or International Plumbing Code (IPC). Shut off and depressurize the system fully before removing or installing any threaded pipe fittings. Apply an appropriate thread sealant or pipe tape rated for the specific media being conveyed. Inspect threads on both the nipple and mating fittings before assembly to avoid cross-threading or leaks.
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