Merit Brass BS114-0604 Brass Pipe Bushing 3/8x1/4 Mnpt Fnpt

Product Description

The MERIT BRASS BS114-0604 is a threaded brass pipe bushing designed to reduce a 3/8 inch male NPT connection down to a 1/4 inch female NPT connection. Rated Class 125, this fitting handles moderate-pressure service in plumbing, gas distribution, and mechanical systems. The hex-style body allows for wrench engagement during installation. At 0.04 pounds, it is a compact reducing fitting machined from brass for corrosion resistance in wet and dry service environments. Plumbers, pipefitters, and HVAC technicians install this bushing when adapting mismatched pipe thread sizes within a system assembly.

This bushing is used in residential and light commercial applications where pipe thread size reduction is required at a fitting, valve, gauge, or equipment port. Common install scenarios include adapting pressure gauges, drain ports, boiler trim connections, gas appliance fittings, and instrumentation taps where a 3/8 inch NPT supply needs to terminate at a 1/4 inch NPT component. Its compact hex profile fits in confined spaces typical of mechanical rooms and equipment cabinets.

Key Features

• Reduces 3/8 inch MNPT to 1/4 inch FNPT in a single fitting
• Class 125 pressure rating suitable for moderate-pressure service
• Threaded connection on both ends for tool-tightened assembly
• Brass construction provides corrosion resistance in plumbing and gas service
• Hex body profile allows standard wrench engagement
• Compact form factor fits tight mechanical and equipment spaces

Compatibility

Designed as an OEM-style threaded reducing bushing for use in residential and light commercial piping systems that require a 3/8 inch MNPT to 1/4 inch FNPT thread reduction.

Installation Notes

Installation is performed by licensed plumbers or pipefitters following applicable IPC and IFGC codes for the service type. Apply thread sealant or PTFE tape to the male threads before assembly. Hand-tighten first, then use a wrench on the hex body to achieve a leak-free seal without over-stressing the fitting. Shut off and depressurize the system and verify zero pressure before installing or removing any threaded fitting.