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The ASC ENGINEERED SOLUTIONS 4354000850 is a black steel seamless extra heavy (XH) pipe nipple sized at 3/8 inch by 3-1/2 inches. Manufactured to ASTM A106B standards, this nipple delivers the heavier wall thickness required for elevated-pressure piping applications. Plumbers, pipefitters, and mechanical contractors use this fitting when standard-weight steel nipples do not meet pressure or schedule requirements. The seamless construction eliminates weld seams, supporting consistent wall integrity throughout the fitting. At 0.20 pounds per piece, it is a compact component suited for close-quarter connections in both new construction and retrofit work.
This nipple is used in black iron piping systems where a short, threaded extension or transition between pipe sections is needed. Typical applications include gas distribution lines, steam systems, and industrial fluid piping that call for extra heavy wall pipe. The 3/8 inch diameter makes it appropriate for smaller branch lines and instrument connections. Import-sourced and non-domestic in origin, this part is well suited for commercial and light industrial projects where domestic certification is not a specification requirement.
Designed as an OEM-style replacement or stock fitting for black steel extra heavy threaded piping systems using 3/8 inch NPT connections.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable mechanical and plumbing codes, including IFGC and ASME B31 standards where relevant. Shut off and depressurize the piping system fully before removing or installing any threaded fittings. Apply an appropriate thread sealant or PTFE tape rated for the service medium before makeup. Do not use pipe wrenches on threads beyond the listed engagement depth, as over-torquing can crack fittings or damage threads.
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