Description

The B K Mueller Industries 583-025HN is a black steel pipe nipple measuring 1/2 inch by 2-1/2 inches, used to make short threaded connections in gas, air, and general-purpose piping systems. Black pipe nipples are a standard fitting in low-pressure gas distribution and are commonly found in residential and light commercial installations. This nipple is sold in a package quantity of 15, making it a practical choice for service techs and plumbers who need multiples on hand for a job. The black finish indicates an uncoated steel construction suited for gas service applications.

This fitting is used in residential and light commercial plumbing and gas piping systems where a short threaded connection is required between fittings, valves, or appliances. Typical applications include gas line stub-outs, manifold connections, and between-fitting extensions. It is commonly installed by licensed plumbers and gas fitters working on natural gas or propane distribution systems, as well as compressed air lines in shop or industrial environments.

Key Features

1/2 inch nominal pipe size with 2-1/2 inch overall length for short-run connections
Black steel construction suitable for gas service piping
Threaded ends compatible with standard NPT fittings and valves
Packaged in quantities of 15 for efficient stocking and jobsite use
Compact close nipple length works in tight fitting-to-fitting layouts

Compatibility

Designed as an OEM-style replacement and standard-fitment nipple for 1/2 inch NPT threaded piping systems in residential and light commercial gas, air, and general-purpose applications.

Installation Notes

Installation should be performed by a licensed plumber or gas fitter in accordance with applicable codes, including the International Fuel Gas Code (IFGC) for gas service applications. Shut off and depressurize the supply line before making or breaking any threaded connections. Apply appropriate thread sealant or pipe tape rated for the service medium before threading. Do not overtighten threaded connections, as this can damage fittings or crack valves.