521-998BC Black Malleable Iron Hex Bushing 2.5x2 in

Product Description

The B K/MUELLER INDS(IMPORT) 521-998BC is a black malleable iron hex bushing designed to reduce a 2.5-inch female threaded connection down to a 2-inch male threaded pipe. Hex bushings are a standard fitting in gas, steam, air, and water piping systems where a threaded reduction is needed in a compact form factor. The external hex allows a wrench to apply torque directly to the fitting during installation. Malleable iron construction provides the toughness and thread integrity required in high-vibration and moderate-pressure piping applications. This fitting is installed by licensed plumbers, pipefitters, and HVAC technicians in both commercial and residential mechanical systems.

This hex bushing is suited for threaded pipe assemblies in gas distribution, compressed air lines, steam systems, and general plumbing applications where a pipe size reduction from 2.5 inches to 2 inches is required. The black finish is standard for gas piping applications. Package quantity is 48 pieces per unit, making this item appropriate for distributor stocking, contractor bulk purchasing, and service van inventory.

Key Features

• Reduces 2.5-inch female NPT to 2-inch male NPT in a single fitting
• Malleable iron construction for durability in threaded piping systems
• External hex design allows full wrench engagement for controlled makeup torque
• Black finish suitable for gas piping applications per standard practice
• Packaged 48 pieces per unit for bulk contractor and distributor use

Compatibility

Designed as an OEM-style replacement and standard-stock fitting for threaded malleable iron piping systems requiring a 2.5-inch to 2-inch NPT reduction.

Installation Notes

Installation is typically performed by a licensed plumber or pipefitter following applicable codes such as the IPC or IFGC depending on the service fluid. Shut off and depressurize the pipe system completely before disassembly or fitting installation. Apply thread sealant or PTFE tape appropriate for the service medium before threading the bushing into the female fitting. Do not over-torque; use the hex to achieve a firm, leak-free connection without stressing the fitting threads.