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The ANDERSON METALS -11153-3 is a red brass pipe nipple threaded on both ends, designed for use in low-pressure fluid and gas piping systems. At 3 inches overall length with NPT threads on each end, this nipple provides a reliable close or short extension between fittings in plumbing, HVAC, and light industrial piping assemblies. Red brass construction offers good corrosion resistance in water service applications. Plumbers and pipefitters install this type of fitting where a short, fully threaded nipple is needed to connect valves, tees, elbows, or other NPT-threaded components.
This nipple is suited for residential and light commercial plumbing, hydronic heating systems, and gas piping where NPT-threaded brass fittings are specified. It fits inline between any two female NPT-threaded connections requiring a 3-inch extension or close coupling. The red brass material makes it a common choice for potable water, steam, and low-pressure gas lines where dezincification resistance is preferred over standard yellow brass.
Designed as an OEM-style replacement or standard-fitment nipple for any system using NPT-threaded brass pipe fittings in the applicable pipe size.
Installation is performed by a licensed plumber or pipefitter. Shut off water or gas supply and depressurize the line before threading in the nipple. Apply appropriate thread sealant or PTFE tape to NPT threads per local plumbing code requirements before assembly. Do not overtighten, as red brass threads can be damaged by excessive torque.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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