Midland Industries SS5406-06-04 Hex Reducer Bushing

Product Description

The MIDLAND INDUSTRIES SS5406-06-04 is a hex reducer bushing designed to transition from a 3/8-inch male NPTF connection to a 1/4-inch female NPTF connection in piping systems. Constructed from 316 stainless steel, this bushing delivers corrosion resistance in demanding environments including chemical exposure, high heat, and moisture. It is rated to 5300 psi working pressure and carries a maximum temperature rating of 1000 degrees F, making it suitable for high-pressure and high-temperature fluid or gas line applications. The external hex profile accepts a standard wrench for secure installation without slipping. Plumbers, pipefitters, and mechanical contractors install this bushing where pipe size reduction is needed at a threaded connection point.

This hex reducer bushing is used in residential and commercial piping systems where a 3/8-inch line must step down to a 1/4-inch port. Typical applications include hydraulic lines, pneumatic systems, fuel lines, steam lines, and instrumentation connections. The NPTF thread form creates a pressure-tight mechanical seal without relying solely on thread sealant, which is especially useful in high-pressure or high-temperature service. The SS5406 series is part of Midland Industries stainless steel pipe adapter offerings suited for industrial, plumbing, and mechanical system use.

Key Features

• 316 stainless steel construction for corrosion resistance in harsh environments
• Rated to 5300 psi working pressure for demanding high-pressure service
• Maximum service temperature of 1000 degrees F
• NPTF threads on both connections provide a pressure-tight mechanical seal
• Hex profile allows wrench engagement for reliable torque application
• Reduces from 3/8-18 male NPTF to 1/4-18 female NPTF in a single fitting

Compatibility

Designed as an OEM-style threaded adapter for use in any piping system requiring a 3/8-inch male NPTF to 1/4-inch female NPTF reducer bushing, including hydraulic, pneumatic, fuel, and steam line applications.

Installation Notes

Installation is performed by licensed pipefitters, plumbers, or qualified mechanical technicians. Depressurize and isolate the line before removing any existing fittings or installing this bushing. Apply thread sealant or PTFE tape as required by job specifications, noting that NPTF threads are designed to seal mechanically but sealant is commonly used in practice. Verify installation torque and pressure ratings comply with applicable plumbing and mechanical codes including ASME and local AHJ requirements.