B K/mueller Inds(import) 588-050HN Black Pipe Nipple

Product Description

The B K/MUELLER INDS(IMPORT) 588-050HN is a black steel pipe nipple measuring 2 inches in diameter by 5 inches in length. Pipe nipples are short lengths of threaded pipe used to connect fittings, valves, and equipment in piping systems. This nipple features male NPT threads on both ends and is finished in black, which distinguishes it from galvanized versions and makes it common in gas distribution, fire suppression, and general plumbing applications. Licensed plumbers and pipefitters are the primary installers. The part ships in a package of 3 units.

Black pipe nipples of this size are used in residential and light commercial applications where a short threaded connection is needed between fittings or at equipment inlets. Typical installations include natural gas and propane supply lines, steam heating systems, and general-purpose iron pipe assemblies. The 2-inch diameter suits medium-flow branch lines and equipment connections. This nipple is suited for above-ground, dry service where the black finish is acceptable per local code.

Key Features

• 2-inch nominal diameter with male NPT threads on both ends
• 5-inch overall length for close-coupled fitting connections
• Black finish — standard for gas and steam piping applications
• Sold in a package quantity of 3
• Compatible with standard 2-inch NPT fittings, valves, and couplings

Compatibility

Designed as an OEM-style replacement and standard-use black iron pipe nipple fitting standard 2-inch NPT threaded piping systems.

Installation Notes

Installation is typically performed by a licensed plumber or pipefitter following applicable IPC or IFGC requirements. Shut off and depressurize the gas or fluid supply before threading or unthreading any pipe nipple. Use pipe thread sealant or PTFE tape rated for the intended service — confirm suitability for gas service when applicable. Do not over-tighten; follow fitting manufacturer guidance for thread engagement.