B K/mueller Inds(import) 511-921HN Galvanized Hex Bushing

Product Description

The B K/MUELLER INDS(IMPORT) 511-921HN is a galvanized hex bushing used to reduce a 3/8-inch female pipe thread to a 1/4-inch male pipe thread. Hex bushings are a standard fitting in pipe systems, allowing technicians to step down pipe size within a run without additional couplings or nipples. The galvanized steel finish provides corrosion resistance suitable for both indoor and outdoor applications. This part ships in a package quantity of five and is sold by the each. It is a common stock item for plumbers, HVAC technicians, and pipefitters working on gas, water, or air lines.

This hex bushing is suited for residential and light commercial plumbing, HVAC, and general pipe fitting applications where a 3/8-inch to 1/4-inch NPT reduction is needed. It is typically installed in threaded pipe assemblies for water supply, compressed air, and low-pressure gas piping systems. The galvanized finish makes it appropriate for installations where mild moisture exposure is expected. This fitting is a practical addition to any service truck or shop parts inventory.

Key Features

• 3/8-inch female NPT to 1/4-inch male NPT reduction
• Galvanized steel construction for corrosion resistance
• Hex body design allows standard wrench installation
• Sold in packages of five units
• Lightweight at approximately 0.19 pounds per unit

Compatibility

Designed as an OEM-style replacement and general-use fitting for standard NPT threaded pipe systems requiring a 3/8-inch to 1/4-inch reduction.

Installation Notes

Installation is performed by licensed plumbers or HVAC technicians following applicable IPC and IFGC codes. Shut off the water, gas, or air supply to the line before beginning work. Apply thread sealant tape or pipe dope appropriate to the service medium before threading the bushing into the female fitting. Do not overtighten, as this can crack fittings or strip threads.