B K/mueller Inds(import) 520-302HN Black 90 Street Elbow

Product Description

The B K/MUELLER INDS(IMPORT) 520-302HN is a black 90-degree street elbow designed for use in gas piping and plumbing distribution systems. A street elbow features one male end and one female end, allowing it to connect directly to a fitting without a nipple between them. This configuration reduces the number of components in a run and simplifies tight-clearance installations. At 3/8 inches, this elbow is suited for branch lines and low-volume supply runs. It ships in a package of 5 units. Licensed plumbers and gas fitters are the primary installers of this fitting type.

This fitting is commonly used in residential and light commercial gas piping, black iron distribution systems, and similar threaded pipe applications. The 3/8-inch size is typical for branch drops from larger mains feeding appliances such as dryers, ranges, or space heaters. The black finish is standard for gas service piping, meeting common code requirements for interior gas distribution. Installers working on retrofit or new-construction projects will find the street configuration useful when working in confined spaces where standard elbows would require an extra threaded nipple.

Key Features

• 90-degree street elbow design with one male and one female threaded end eliminates need for an additional nipple
• 3/8-inch pipe size suitable for branch gas and plumbing lines
• Black finish meets standard code requirements for interior gas distribution piping
• Sold in a package of 5 units for multi-connection jobs
• Threaded ends for use with standard NPT-compatible fittings and pipe

Compatibility

Designed as an OEM-style replacement and standard-use fitting for 3/8-inch threaded black iron pipe systems in residential and light commercial gas or plumbing applications.

Installation Notes

Installation should be performed by a licensed plumber or gas fitter in accordance with applicable local codes, the International Fuel Gas Code (IFGC), or the International Plumbing Code (IPC). Shut off the gas supply or water supply fully and verify pressure is relieved before beginning work. Apply appropriate pipe thread sealant or PTFE tape rated for the service medium to all threaded connections. Do not over-tighten threaded fittings, as this can crack cast fittings or strip threads.