Merit Brass K414-0402 Pipe Bushing 1/4 X 1/8 in 304 Ss

Product Description

The MERIT BRASS K414-0402 is a threaded pipe bushing designed to reduce a 1/4-inch female NPT port down to a 1/8-inch male NPT connection. Constructed from 304 stainless steel, this Schedule 40 bushing handles a pressure rating of 150 psi and meets ISO standards. It is used wherever a piping system requires a concentric reduction between NPT-threaded fittings. The MNPT x FNPT configuration allows direct thread engagement into a female-threaded port with a male-threaded outlet for the smaller line. Plumbers, pipefitters, and HVAC technicians routinely specify this bushing for clean fluid and gas piping applications.

This bushing is suited for residential and light commercial piping installations where a compact, corrosion-resistant threaded reduction is needed. The 304 stainless steel construction makes it appropriate for water, compressed air, and mild chemical service lines. It fits into standard NPT-threaded pipe assemblies and panel or manifold ports requiring a 1/4-inch to 1/8-inch step-down.

Key Features

• 304 stainless steel construction for corrosion resistance in wet and mild chemical environments
• MNPT x FNPT threaded ends for direct engagement into standard NPT-threaded fittings and ports
• 150 psi pressure rating suitable for low- to medium-pressure piping systems
• Schedule 40 wall thickness for compatibility with standard pipe schedules
• ISO-compliant dimensions for consistent thread fit and sealing
• Compact concentric bushing design reduces bulk in tight piping assemblies

Compatibility

Designed as an OEM-style replacement or new-install fitting for standard 1/4-inch x 1/8-inch MNPT x FNPT threaded pipe assemblies rated to 150 psi.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC and IFGC codes. Shut off system pressure and depressurize the line before removing or installing any threaded fitting. Apply an appropriate thread sealant or PTFE tape to the male threads before engagement; do not overtighten, as stainless steel threads can gall if excessive force is applied. Inspect threads for damage before installation.