B K Mueller 583-080HN Black Steel Pipe Nipple 1/2 X 8 in

Product Description

The B K Mueller Industries 583-080HN is a black steel pipe nipple used to connect threaded pipe sections in gas, air, and general-purpose piping systems. Measuring 0.5 inches in nominal diameter and 8 inches in length, this close-cut nipple provides a reliable threaded coupling point between fittings, valves, and pipe runs. Black steel pipe nipples are a standard component in low-pressure gas distribution and industrial fluid systems. Licensed plumbers, pipefitters, and HVAC technicians install these as part of both new construction and service work on gas-fired appliances and associated piping infrastructure.

This nipple is suited for residential and light commercial applications where black iron or black steel threaded pipe is specified. Typical uses include gas supply lines to furnaces, boilers, water heaters, and unit heaters, as well as compressed air and industrial fluid lines. The 8-inch length makes it appropriate for short branch connections or extensions where a standard close or shoulder nipple would be too short. It is sold in a package quantity of 15, making it practical for contractors stocking multiple units for recurring service calls or new-installation work.

Key Features

• Black steel construction suitable for gas, air, and general-purpose threaded piping
• 0.5-inch nominal diameter with 8-inch overall length
• Threaded ends for direct connection to standard NPT fittings and valves
• Packaged in quantities of 15 for contractor and shop stock

Compatibility

Designed as a standard NPT-threaded black steel pipe nipple for use in residential and commercial gas, air, and general-purpose piping systems where 0.5-inch black iron pipe is specified.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or qualified HVAC technician in accordance with applicable local codes and IFGC requirements for gas piping. Shut off the gas supply and verify zero pressure at the line before making or breaking any threaded connections. Apply an approved pipe thread sealant or PTFE tape rated for gas service to all male threads before assembly. Do not over-tighten threaded connections; use a pipe wrench with a backup wrench on adjacent fittings to avoid stressing downstream components.