Merit Brass 3414D-0402 Pipe Bushing 1/4 X 1/8 in Ss 3000 Psi

Product Description

The MERIT BRASS 3414D-0402 is a threaded pipe bushing designed to reduce a 1/4-inch male pipe thread to a 1/8-inch female pipe thread in pressurized fluid and gas distribution systems. Constructed from 304/304L stainless steel, it delivers solid corrosion resistance for installations exposed to moisture, mild chemicals, or outdoor conditions. The bushing carries a 3,000 psi pressure rating, making it suitable for demanding hydraulic, pneumatic, and process-piping applications. Plumbers, pipefitters, and HVAC technicians install this fitting when transitioning between pipe sizes within a threaded assembly.

This bushing fits residential, commercial, and light industrial piping systems where a hex bushing-style reducer is required at an existing 1/4-inch male NPT port. Common applications include compressed-air distribution, instrumentation lines, refrigeration oil lines, water distribution manifolds, and process-control piping. The MNPT x FNPT end configuration allows direct hand-start thread engagement before final torque, simplifying installation in tight spaces. It ships individually and is available in minimum order quantities of 6 units.

Key Features

• 304/304L stainless steel construction provides corrosion resistance in wet and mildly corrosive environments
• 3,000 psi pressure rating suits high-pressure pneumatic and hydraulic service
• MNPT x FNPT threaded connection for tool-compatible, leak-resistant assembly
• 1/4-inch male to 1/8-inch female reducing configuration in a compact hex bushing form
• Threaded end connections comply with standard NPT taper for broad fitment in existing pipe systems

Compatibility

Designed as an OEM-style threaded pipe bushing replacement for use in any standard NPT-threaded piping system requiring a 1/4-inch male to 1/8-inch female reducing connection.

Installation Notes

Installation is performed by licensed plumbers or pipefitters in accordance with applicable plumbing codes such as the IPC or IFGC. Depressurize and isolate the line completely before removing or installing any threaded fittings. Apply an appropriate thread sealant or PTFE tape to the male threads before assembly to ensure a leak-free joint. Avoid over-torquing stainless steel threads, as galling can occur without proper lubrication or anti-seize compound.