3/4 inch x 5-1/2 inch Brass Nipple

3/4" x 5-1/2" Brass Pipe Nipple – Machined for Secure, Code-Compliant Connections

The 3/4" x 5-1/2" Brass Nipple is precision-engineered for use in a wide range of fluid handling systems, including potable water, compressed air, oil, and hydraulic applications. Fabricated from lead-free brass alloy, this component offers both corrosion resistance and mechanical durability under elevated temperatures and pressures.

Machined with standard NPT threads, the nipple provides a consistent, leak-resistant connection between two female-threaded fittings or pipe segments. It is suitable for new installations and retrofit work in residential, commercial, and industrial environments.

Performance Highlights

• Material: Lead-free brass (compliant with NSF/ANSI 61 and federal low-lead standards)
• Connection: 3/4" NPT Male x Male
• Length: 5-1/2" overall
• Pressure Rating: Suitable for use in systems up to 1,200 PSI (non-shock, depending on system parameters)
• Temperature Range: Up to 400°F for air or water systems

Advantages for Professional Use

• Machined Thread Integrity: Threads are cut to ANSI B1.20.1 standards to ensure proper sealing with compatible fittings.
• Versatility: Used in water, gas, oil, and air systems across multiple trades including plumbing, HVAC, and industrial process piping.
• Corrosion Resistance: Suitable for systems exposed to varying pH and moderate chemical environments.
• Code-Compliant Construction: Lead-free composition meets current potable water regulations across all U.S. jurisdictions.

Installation Notes

Apply thread sealant or PTFE tape per job specifications to ensure a watertight seal. Over-torquing should be avoided to preserve thread integrity. Pipe support and proper alignment are critical for long-term system reliability. For pressurized or critical systems, follow all applicable code and engineering guidance.

Common Applications

Typically installed in potable water systems, boiler and hydronic loops, compressed air lines, and industrial process piping where short lengths are needed to bridge threaded components. Its compact size is ideal for tight clearances.

Standards & Compliance

• ASTM B687 (pipe nipple manufacturing)
• NSF/ANSI 61 & 372 certified for potable water
• Meets Safe Drinking Water Act (SDWA) requirements for lead content

The 3/4" x 5-1/2" Brass Pipe Nipple offers the dimensional consistency, metallurgical performance, and regulatory compliance professionals demand. Specify this component where long-term sealing and corrosion resistance are required in threaded piping systems.