Mueller Industries 583-480 Black Iron Nipple 1/2x48

Product Description

The MUELLER INDUSTRIES 583-480 is a black iron pipe nipple measuring 1/2 inch in diameter and 48 inches in length. Black iron pipe nipples are threaded fittings used to connect sections of pipe in gas distribution, steam, and other fluid-carrying systems. This nipple accepts standard NPT threads on both ends and is manufactured from black iron, which is the industry-standard material for natural gas and propane supply lines in residential and commercial construction. Licensed plumbers, pipefitters, and HVAC technicians install these as part of rough-in gas piping, boiler connections, and similar applications.

This nipple is suited for residential and light commercial applications where a full-length, large-diameter threaded fitting is required. Common install scenarios include long gas supply runs, boiler room piping, steam heat systems, and industrial compressed-air distribution. The 48-inch length eliminates the need for additional couplings on longer straight runs, reducing potential leak points in the system. Always confirm that the pipe material and thread specification are appropriate for the gas type, operating pressure, and local code requirements before installation.

Key Features

• Black iron construction suitable for natural gas and propane supply piping
• 48-inch length reduces coupling count on long straight runs
• 1/2-inch nominal diameter with standard NPT threads on both ends
• Compatible with standard black iron fittings, valves, and couplings
• Full-length nipple design for extended reach in tight or deep installations

Compatibility

Designed as an OEM-style replacement and standard trade fitting compatible with 1/2-inch NPT black iron pipe systems used in residential and commercial gas, steam, and fluid distribution piping.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or qualified HVAC technician in accordance with local codes and the International Fuel Gas Code (IFGC) or International Plumbing Code (IPC) as applicable. Shut off the gas supply or isolate the system section before making any connections. Apply an approved thread sealant or PTFE tape rated for gas service to all threaded joints. Support the pipe properly to avoid stress on fittings and valves throughout the run.

Technical Specifications

• Material: Black Iron
• Nominal Pipe Size: 1/2 inch
• Length: 48 inches
• Thread Type: NPT (both ends)

Standard Information

• Brand: MUELLER INDUSTRIES
• Manufacturer Part Number: 583-480