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The B K Mueller Industries 562-050HN is a 3/8-inch by 5-inch galvanized steel pipe nipple used to connect threaded pipe runs in plumbing, HVAC, gas distribution, and general mechanical piping systems. Galvanized construction provides corrosion resistance suitable for water supply and low-pressure utility applications. Sold in a package of 5 pieces, this nipple follows standard NPT threading for straightforward installation into fittings, valves, and unions. Plumbers and pipefitters stock this size as a common close-out extension in tight spaces or as a standoff between threaded components.
This nipple is appropriate for residential and light commercial plumbing rough-in work, hydronic heating connections, and general trade applications where a short, threaded galvanized steel extension is required. The 3/8-inch nominal diameter and 5-inch length make it suitable for branch connections, boiler trim, utility piping, and replacement of corroded or damaged nipples in existing systems. Each package contains 5 nipples, making it practical for service calls and small installation jobs.
Designed as an OEM-style replacement or standard-stock fitting for residential and commercial threaded pipe systems using 3/8-inch NPT connections.
Installation is performed by licensed plumbers or qualified pipefitters. Shut off the water supply or isolate the gas line and relieve system pressure before removing or installing any threaded nipple. Apply thread sealant tape or pipe compound rated for the service medium before making up the joint. Follow IPC and IFGC requirements for thread engagement and pressure testing after installation.
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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