B K Mueller 583-055HC Black Pipe Nipple 1/2x5-1/2 in

Product Description

The B K Mueller Industries 583-055HC is a black steel pipe nipple measuring 1/2 inch in diameter by 5-1/2 inches in length. Pipe nipples are short threaded pipe sections used to connect two fittings, valves, or other threaded components in a piping system. This nipple is manufactured from black steel, making it well suited for gas distribution, compressed air, and fire suppression lines where galvanized or copper fittings are not specified. Plumbers, pipefitters, and mechanical contractors install these as standard close-out or extension pieces in threaded black iron systems.

This nipple is appropriate for residential and light commercial applications including natural gas supply lines, propane distribution, and general-purpose black iron piping systems. It is packaged in quantities of 25 units per package, making it convenient for contractors stocking out a job or maintaining shop inventory. The 1/2-inch thread size is one of the most common thread sizes encountered in residential gas and mechanical systems.

Key Features

• Black steel construction suitable for gas, air, and fire suppression piping
• 1/2-inch diameter by 5-1/2-inch length for standard close-out and extension applications
• Threaded ends for connection to compatible fittings, valves, and couplings
• Sold in packages of 25 units for job-site and shop stocking efficiency

Compatibility

Designed as an OEM-style replacement or standard-stock fitting for black iron threaded piping systems using 1/2-inch NPT-compatible fittings and valves.

Installation Notes

Black pipe nipples are typically installed by licensed plumbers or pipefitters working on gas or mechanical piping systems. Shut off and verify the absence of gas or pressure in the line before breaking any threaded connection. Apply appropriate thread sealant or pipe-thread tape rated for the service medium prior to makeup. All gas piping installations must comply with applicable local codes and IFGC requirements.