Midland Industries 540686 Hex Pipe Reducer Bushing

Product Description

The MIDLAND INDUSTRIES 540686 is a hex pipe reducer bushing designed to connect a 1/2-inch male NPTF port to a 3/8-inch female NPTF port in steel pipe systems. The hex body provides a flat wrench surface for reliable torque application during installation. Manufactured from steel, this bushing is rated for service up to 375 degrees F, making it suitable for high-temperature hydraulic and fluid transfer applications. Thread specifications are 1/2-14 on the male end and 3/8-18 on the female end. Plumbers, pipefitters, and hydraulic system technicians commonly install this fitting in industrial and commercial fluid lines.

This reducer bushing is applied in hydraulic systems, steel pipe assemblies, and industrial fluid transfer lines where a step-down from a 1/2-inch port to a 3/8-inch port is required. Its compact dimensions - 1.05 inches in length and 0.85 inches in height and width - allow installation in tight manifold or valve body configurations. The NPTF thread form provides a pressure-tight, dry-seal connection without requiring additional sealant tape in many applications, though best practice varies by system pressure and fluid type.

Key Features

• Steel construction rated to 375 degrees F for high-temperature service
• Hex body design allows standard wrench engagement for controlled installation
• 1/2-14 male NPTF x 3/8-18 female NPTF dry-seal thread form
• Compact profile: 1.05 inches long, 0.85 inches in height and width
• Part of the 5406 Series Hex Pipe Reducer Bushing product line

Compatibility

Designed as an OEM-style replacement or system component for steel pipe adapter applications in hydraulic and industrial fluid systems using 1/2-inch male NPTF and 3/8-inch female NPTF connections.

Installation Notes

Installation should be performed by a qualified plumber, pipefitter, or hydraulic technician following applicable codes such as the IPC or system manufacturer specifications. Depressurize and drain the line completely before removing or installing any pipe fitting. Use a properly sized open-end or adjustable wrench on the hex body - do not use pipe wrenches on the hex flats. Inspect threads for damage before installation and verify thread compatibility with mating ports to ensure a leak-free seal.