B K/mueller Industries 566-120HN Galvanized Nipple

Product Description

The B K/Mueller Industries 566-120HN is a galvanized steel pipe nipple designed for use in threaded piping systems. This close-tolerance fitting measures 1-1/4 inches in diameter and 12 inches in length, providing a reliable threaded connection between piping components. The hot-dip or mill galvanized zinc coating resists corrosion in wet and moderately aggressive environments. It is installed by licensed plumbers and pipefitters working on water supply, gas distribution, and general mechanical piping systems where a standard threaded nipple is required.

This nipple is suited for residential and light commercial plumbing and mechanical applications. Common uses include connecting valves, fittings, and fixtures in water supply lines, as well as general-purpose threaded pipe assemblies. The 1-1/4-inch diameter is a standard size found in main branch lines, boiler piping, and larger fixture supplies. Sold in a package quantity of 5 units, making it a practical choice for service contractors and jobsite stocking.

Key Features

• 1-1/4-inch nominal pipe diameter with 12-inch lay length
• Galvanized zinc coating for corrosion resistance in wet service environments
• Threaded both ends for standard NPT connections
• Packaged in quantities of 5 units per package
• Compatible with standard schedule 40 threaded pipe fittings

Compatibility

Designed as an OEM-style replacement or standard-stock fitting for 1-1/4-inch NPT threaded piping systems in residential and commercial plumbing and mechanical applications.

Installation Notes

Installation is performed by a licensed plumber or pipefitter following applicable IPC and IFGC code requirements. Shut off the water or gas supply and depressurize the line before removing or installing any threaded fitting. Apply an approved thread sealant or PTFE tape to the male threads before assembly. Do not overtighten threaded connections, as this can crack fittings or distort threads.