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The ASC ENGINEERED SOLUTIONS 4309009306 is a 10-piece black steel nipple run in a 1-inch fitting size with 6-inch length, rated to Extra Heavy (XH) wall schedule. Nipple runs are pre-selected sets of threaded pipe nipples used in plumbing, gas piping, and mechanical systems where installers need multiple uniform fittings for a single job or service call. The black steel construction makes this run suitable for gas distribution, steam, and non-potable water piping applications. Licensed plumbers and pipefitters install these as standard components in residential and light commercial systems. The 10-piece pack reduces repeated ordering and supports consistent fitting inventory on the truck or jobsite.
This nipple run is well suited for gas supply lines, steam piping, and industrial plumbing rough-in work where Extra Heavy wall thickness is specified. The 1-inch diameter and 6-inch length are common dimensions in residential gas manifolds, boiler piping, and mechanical room installations. Domestically produced, this run meets the dimensional and material expectations for trade work governed by the International Fuel Gas Code and International Plumbing Code.
Designed as an OEM-style replacement and standard fitment for 1-inch threaded black steel piping systems requiring Extra Heavy wall nipples in gas, steam, or mechanical applications.
Installation of black steel nipple runs should be performed by a licensed plumber or pipefitter in accordance with applicable local codes, the International Fuel Gas Code, or the International Plumbing Code. Shut off and depressurize the supply line completely before removing or installing any threaded fitting. Apply listed pipe thread sealant or PTFE tape rated for the intended service — confirm sealant compatibility with gas service if used on fuel lines. Inspect threads for damage before installation and do not overtighten, as black steel threads can crack fittings or distort seats.
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