Merit Brass K616-02 Pipe End Cap 1/8 in 316 Ss Fnpt

Product Description

The MERIT BRASS K616-02 is a threaded pipe end cap designed to seal the open end of a 1/8-inch female NPT pipe connection. Manufactured from 316 stainless steel, it provides strong resistance to corrosion and oxidation in demanding service environments. Rated to 150 psi, this cap is suited for low-to-medium pressure piping systems where a secure, leak-free termination is required. Plumbers, pipefitters, and maintenance technicians install this type of fitting during system construction, pressure testing, or when capping unused branch connections in fluid or gas distribution lines.

This end cap is appropriate for residential and light commercial plumbing, industrial process piping, and instrumentation lines where 316 stainless steel is specified for corrosion resistance. The 1/8-inch FNPT threaded connection makes it compatible with standard pipe threads in water, air, and compatible fluid systems. It is commonly used to terminate unused ports on manifolds, valves, and distribution headers. The fitting meets ISO standards, making it suitable for installations requiring documented compliance with international piping specifications.

Key Features

• 316 stainless steel construction for superior corrosion resistance in wet and chemical-exposure environments
• 1/8-inch FNPT threaded connection for standard pipe thread engagement
• 150 psi pressure rating suitable for low-to-medium pressure service
• Threaded end cap design allows installation and removal without special tooling
• Meets ISO standards for use in compliant piping installations
• Compact and lightweight at 0.05 pounds for easy handling in tight spaces

Compatibility

Designed as an OEM-style threaded end cap for 1/8-inch FNPT pipe connections in standard plumbing, process, and instrumentation piping systems.

Installation Notes

Installation is performed by a licensed plumber or pipefitter. Shut off and depressurize the piping system fully before removing or installing any end cap. Apply an appropriate thread sealant or PTFE tape to the male threads before engagement. Tighten to snug fit using a pipe wrench or appropriately sized wrench — do not overtighten stainless steel threaded fittings, as galling can occur. Verify system integrity by pressure testing after installation per applicable code requirements.