Merit Brass 416B-02 Pipe End Cap 1/8 Inch Fnpt 304 Ss

Product Description

The MERIT BRASS 416B-02 is a 1/8 inch female NPT threaded pipe end cap manufactured from 304 stainless steel. End caps of this type are used to permanently or temporarily close off the open end of a threaded pipe run, preventing flow, containing pressure, and protecting internal pipe threads from contamination or corrosion. This fitting is pressure-rated to 150 psi and features a standard FNPT thread form for easy installation with a pipe wrench or appropriate fitting tool. The 304 stainless steel construction offers solid corrosion resistance in a wide range of plumbing and process piping environments.

This end cap is suited for use in residential and light commercial plumbing, process piping, instrumentation lines, and fluid handling systems where a small-diameter threaded termination point is required. Plumbers, pipefitters, and mechanical contractors use fittings like this to cap off branch lines, isolate sections of piping during pressure testing, or seal unused ports on manifolds and headers. The 1/8 inch size is common on instrument ports, gauge connections, and low-flow branch lines.

Key Features

• 1/8 inch FNPT thread for standard threaded pipe connections
• 150 psi pressure rating suitable for typical plumbing and instrumentation service
• 304 stainless steel construction for corrosion resistance in wet and mildly corrosive environments
• Compact end cap profile for use in tight installations
• Threaded connection type allows removal and reinstallation without specialized tools

Compatibility

Designed as a standard FNPT threaded end cap compatible with 1/8 inch NPT threaded pipe and fittings in 150 psi class piping systems.

Installation Notes

Installation is performed by licensed plumbers or qualified pipefitters following applicable IPC or IFGC requirements for the service type. Depressurize and drain the pipe section before installing or removing any threaded end cap. Apply appropriate thread sealant or PTFE tape to the male threads being capped, following standard practice for the fluid service. Do not overtighten, as stainless steel threads can gall if excessive force is applied.