Merit Brass 2106-150 Brass Pipe Nipple 3/8 in Npt

Product Description

The MERIT BRASS 2106-150 is a close-pattern red brass pipe nipple threaded on both ends, designed for use in plumbing, HVAC, and industrial piping systems. Manufactured from red brass, this nipple measures 1-1/2 inches overall length (OAL) with a 3/8-inch NPT thread on each end and a 3/8-inch outside diameter. It meets OSHA standards and is suitable for joining pipe sections or connecting fittings in moderate-pressure fluid and gas service. Licensed plumbers and pipefitters commonly install this type of fitting in supply lines, distribution manifolds, and equipment connections.

This nipple is well suited for residential and light commercial plumbing and HVAC applications where a short, fully threaded brass connector is required. Typical installations include water supply piping, boiler trim, steam systems, and compressed air headers where a corrosion-resistant, threaded close nipple is preferred over galvanized or black iron alternatives. The red brass construction offers improved resistance to dezincification compared to standard yellow brass in aggressive water conditions.

Key Features

• Threaded on both ends for direct pipe-to-fitting or fitting-to-fitting connection
• Red brass construction resists corrosion and dezincification
• 1-1/2-inch overall length — compact close nipple profile
• 3/8-inch NPT thread standard ensures leak-free tapered thread engagement
• Meets OSHA standards
• 3/8-inch outside diameter — fits standard 3/8-inch iron pipe size (IPS) fittings

Compatibility

Designed as an OEM-style replacement and general-purpose fitting compatible with standard 3/8-inch NPT threaded pipe and fittings in plumbing, HVAC, and industrial piping assemblies.

Installation Notes

Installation should be performed by a licensed plumber or qualified pipefitter in accordance with applicable local plumbing codes and IFGC or IPC requirements. Shut off the water or gas supply and relieve system pressure completely before removing or installing any pipe nipple. Apply an appropriate thread sealant or PTFE tape to the NPT threads before assembly — do not over-tighten, as brass threads can be damaged by excess torque. Inspect threads for damage before installation and replace any nipple with crossed, cracked, or deformed threads.