B K Mueller 521-953HN Black Hex Bushing 1x1/2 in

Product Description

The B K Mueller Industries 521-953HN is a black hex bushing designed to reduce a 1-inch female pipe thread down to a 1/2-inch male pipe thread. This type of threaded reducer fitting is a standard component in gas piping, black iron distribution systems, and industrial plumbing assemblies. The hex profile allows for easy installation and removal using a standard pipe wrench or open-end wrench. Plumbers, pipefitters, and gas service technicians use this fitting when transitioning between pipe sizes within a threaded iron pipe system.

Black hex bushings are commonly used in residential and light commercial gas supply lines, compressed air distribution, and black iron piping networks. This fitting threads directly into a 1-inch female fitting and accepts a 1/2-inch male pipe connection. The black iron finish is appropriate for gas service applications where galvanized fittings are not permitted by code. Packaged in quantities of 10 units per package, this fitting suits both service calls and new installation work.

Key Features

• 1-inch female to 1/2-inch male threaded reducer configuration
• Hex body profile allows wrench engagement for secure installation
• Black iron finish suitable for gas piping applications
• Sold in a package of 10 units per pack
• Standard NPT thread form for compatibility with black iron pipe systems

Compatibility

Designed as an OEM-style replacement fitting for threaded black iron pipe systems requiring a 1-inch to 1/2-inch reduction in residential and commercial piping assemblies.

Installation Notes

Installation should be performed by a licensed plumber or gas fitter in accordance with applicable local codes and the International Fuel Gas Code (IFGC) for gas service applications. Shut off the gas supply or depressurize the system completely before making 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 iron fittings, as this may crack the fitting or damage mating threads.