Merit Brass BS114-0402 Brass Pipe Bushing 1/4x1/8 Mnpt Fnpt

Product Description

The MERIT BRASS BS114-0402 is a threaded brass pipe bushing designed to reduce a 1/4-inch male NPT connection down to a 1/8-inch female NPT port. This hex-head style fitting allows technicians to adapt between two different pipe thread sizes within a pressurized system without the need for additional adapters or unions. Rated at Class 125, it is suitable for a range of fluid and gas service applications in residential and light commercial installations. Licensed plumbers, HVAC technicians, and pipefitters install this type of fitting as part of standard threaded pipe assemblies.

This bushing is commonly used in plumbing, HVAC, and industrial piping systems where a transition between a 1/4-inch and 1/8-inch threaded pipe connection is required. Typical applications include gauge ports, instrument connections, and low-pressure pneumatic or fluid lines. It is suited for installations where a compact, all-brass threaded adapter is needed to complete a pipe reduction without additional fittings in the run.

Key Features

• Reduces 1/4-inch MNPT to 1/8-inch FNPT in a single fitting
• Class 125 pressure rating suitable for standard service applications
• Threaded connection type for tool-based installation and removal
• Brass construction provides corrosion resistance in fluid and gas service
• Compact bushing form factor minimizes added length in the pipe assembly

Compatibility

Designed as an OEM-style replacement or new-installation fitting for standard 1/4-inch MNPT x 1/8-inch FNPT threaded pipe systems rated at Class 125 service conditions.

Installation Notes

Installation is performed by licensed plumbers or qualified HVAC and pipefitting technicians. Shut off and depressurize the system fully before removing or installing any threaded pipe fittings. Apply an approved thread sealant or PTFE tape to the male threads before assembly, following local plumbing code requirements. Do not over-torque the fitting, as brass threads can be damaged by excessive force.