B K Mueller 584-055HC Black Pipe Nipple 3/4x5.5 Inch 25pk

Product Description

The B K Mueller Industries 584-055HC is a black steel pipe nipple measuring 3/4 inch in diameter and 5-1/2 inches in length. Pipe nipples are short threaded pipe sections used to connect fittings, valves, and other components in a piping system. This nipple is finished in black, indicating it is made from black iron or black steel, which is standard for gas distribution, compressed air, and similar systems. Licensed plumbers and pipefitters install this type of fitting during new construction, retrofit work, and repair applications. It ships in a package quantity of 25 units, making it well suited for contractors stocking a service van or job site.

This nipple is used in residential and commercial piping systems where black iron fittings are required. Common applications include natural gas supply lines, propane distribution, industrial air lines, and fire suppression systems. The 3/4 inch size is one of the most common trade sizes in these systems. Each unit is sold individually, with the package containing 25 pieces per order, providing a practical quantity for ongoing installation work.

Key Features

• 3/4 inch nominal pipe size for high-demand gas and air line applications
• 5-1/2 inch overall length for precise offset and extension connections
• Black steel construction standard for gas distribution and compressed air systems
• Threaded ends for connection to standard NPT fittings and valves
• Sold in a package quantity of 25 units per order

Compatibility

Designed as a standard replacement or installation fitting compatible with 3/4 inch NPT threaded piping systems using black iron or black steel components.

Installation Notes

Black pipe nipples of this type are installed by licensed plumbers or pipefitters in accordance with applicable local codes, including the International Fuel Gas Code (IFGC) for gas line applications. Shut off the gas supply or depressurize the system before disassembly or installation. Use an appropriate pipe thread sealant or PTFE tape rated for the service type, such as a gas-rated compound for natural gas or propane lines. Do not overtighten threaded connections, as this can crack fittings or damage threads.