Midland Industries 28664P Reducer Hex Bushing 1/2 Mpt X 3/8 Fpt

Product Description

The MIDLAND INDUSTRIES 28664P is a reducer hex bushing designed to step down a 1/2-inch male pipe thread (MPT) connection to a 3/8-inch female pipe thread (FPT) connection. Constructed from polypropylene, this fitting offers solid resistance to corrosion and chemical exposure, making it a reliable choice for low-pressure fluid and gas distribution lines. The threaded configuration follows standard NPT pitch dimensions: 1/2-14 on the male end and 3/8-18 on the female end. Plumbers, pipefitters, and HVAC technicians commonly use hex bushings like this one when adapting between two different pipe sizes within a single run, and the hex body allows for a wrench to be applied for secure installation.

This bushing is suited for residential and light commercial plumbing and HVAC applications where a threaded polypropylene fitting is appropriate. Typical uses include water supply lines, chemical distribution systems, and low-pressure process piping where metal fittings are not preferred due to corrosion concerns or weight considerations. The compact profile fits into tight spaces where a full coupling-and-nipple combination would be impractical.

Key Features

• Steps down 1/2-inch MPT to 3/8-inch FPT in a single fitting
• Polypropylene construction resists corrosion and common chemicals
• Hex body allows standard wrench engagement for leak-free makeup
• 1/2-14 x 3/8-18 NPT thread form for compatibility with standard pipe threads
• Compact dimensions: approximately 1.0 inch wide, 0.9 inches tall, and 0.85 inches in length

Compatibility

Designed as a standard-thread reducer hex bushing for use in threaded polypropylene plastic pipe fitting systems where a 1/2-inch MPT to 3/8-inch FPT reduction is required.

Installation Notes

Installation is typically performed by a licensed plumber or HVAC technician. Shut off the water or fluid supply and relieve system pressure before making any threaded connections. Apply PTFE thread tape or an approved thread sealant to the male threads prior to assembly; do not overtighten polypropylene fittings as the material is subject to cracking under excessive torque. Verify that the fitting is rated for the operating pressure and fluid type of the application before installing.