B K Mueller 581-060HN Black Pipe Nipple 1/4 X 6 in 10-pack

Product Description

The B K Mueller Industries 581-060HN is a black steel pipe nipple measuring 0.25 inches in diameter by 6 inches in length. Pipe nipples are short sections of pipe threaded on both ends, used to connect two fittings, valves, or other pipe sections in a piping system. This nipple is finished in black, which is standard for non-potable applications such as natural gas and propane distribution lines, as well as general industrial and mechanical piping. Licensed plumbers and gas fitters are the primary installers. Each package contains 10 nipples, making it a practical stock item for service vehicles and supply rooms.

This black pipe nipple is commonly used in residential and light commercial gas supply lines, as well as low-pressure steam and general-purpose piping systems where a corrosion-resistant coating is not required. The 6-inch length suits a range of offset and extension connections in tight mechanical spaces. It is a standard close-to-long-pattern nipple used in new installation and repair work across plumbing and gas-fitting trades.

Key Features

• Black steel finish suitable for natural gas, propane, and general mechanical piping
• 0.25-inch nominal pipe diameter with 6-inch body length
• Threaded on both ends for quick connection to standard fittings and valves
• Sold in a package of 10 units, convenient for stocking and job-site use
• Standard NPT threading for compatibility with common fittings

Compatibility

Designed as a standard OEM-style black steel pipe nipple for use in 0.25-inch NPT piping systems, including natural gas, propane, and general-purpose low-pressure mechanical applications.

Installation Notes

Installation should be performed by a licensed plumber or gas fitter in accordance with applicable local codes, including the International Fuel Gas Code (IFGC) and International Plumbing Code (IPC). Shut off the gas or fluid supply and verify zero pressure before cutting into any existing line. Apply appropriate thread sealant or PTFE tape rated for the intended service medium before threading the nipple into fittings. Do not over-tighten threaded connections; use a pipe wrench and backup wrench to prevent stress on adjacent fittings.