B K Mueller 581-015HC Black Pipe Nipple 1/4x1-1/2 in 10pk

Product Description

The B K Mueller Industries 581-015HC is a black steel pipe nipple designed for close-quarter pipe connections in gas, air, and fluid distribution systems. Measuring 1/4 inch nominal diameter by 1-1/2 inches in length, this nipple fits between threaded fittings where space is limited. Sold in a package of 10 units, it is a practical stocking item for plumbers, pipefitters, and HVAC technicians who regularly deal with low-pressure threaded piping assemblies. The black finish indicates standard carbon steel construction, common in gas distribution and industrial piping applications.

This nipple is suited for residential and light commercial piping work, including gas supply lines, compressed air distribution, and general plumbing rough-in. The 1/4 inch nominal size is frequently encountered in branch connections, instrumentation taps, and valve inlet applications. Technicians working on gas appliance connections or air line accessories will find this a commonly needed close nipple size. The 10-unit pack quantity supports service van inventory and recurring maintenance work.

Key Features

• 1/4 inch nominal diameter by 1-1/2 inch length for tight-clearance threaded connections
• Black steel construction standard for gas piping and industrial air systems
• Threaded both ends for standard NPT fitting compatibility
• Packaged in quantities of 10 for efficient stocking and service use
• Lightweight at 0.42 pounds per pack, easy to carry in service inventory

Compatibility

Designed as an OEM-style replacement and standard stock nipple compatible with 1/4 inch NPT threaded fittings used in residential and commercial gas, air, and fluid piping systems.

Installation Notes

Installation is performed by licensed plumbers or pipefitters following applicable code requirements, including IFGC guidelines for gas piping. Shut off the gas or fluid supply and depressurize the line before removing or installing any threaded fitting. Apply an approved pipe thread sealant or PTFE tape to the male threads prior to assembly. Do not overtighten; use a pipe wrench and backup wrench technique to avoid stressing adjacent fittings.