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The ASC Engineered Solutions 831000401 is a galvanized steel close nipple used to connect threaded pipe fittings in plumbing, HVAC, and general piping systems. Measuring 1/8 inch by 1-1/2 inch, this short-length nipple provides a rigid, corrosion-resistant threaded coupling point between components. The galvanized finish helps resist rust and moisture in exposed or semi-exposed installations. Plumbers, pipefitters, and HVAC technicians use close nipples like this to extend or transition threaded runs without adding significant length to the assembly.
This nipple is suited for residential and light commercial piping applications where 1/8 inch NPT threaded connections are required. Common use cases include gas line accessories, water distribution branch connections, compressed air fittings, and HVAC condensate or pressure-port connections. Its compact 1-1/2 inch length makes it appropriate for tight-clearance installations where space between fittings is limited.
Designed as a standard replacement or new-installation nipple for any system using 1/8 inch NPT threaded pipe connections, including plumbing, HVAC, and light industrial piping assemblies.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local plumbing codes, including IPC guidelines where adopted. Shut off the relevant water, gas, or air supply and depressurize the line before beginning work. Apply an appropriate thread sealant or PTFE tape to the male threads before making up the joint. Do not over-tighten, as small-diameter galvanized nipples can crack or cross-thread when excessive force is applied.
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