1 inch x 4 inch Brass Nipple

1" x 4" Lead-Free Brass Pipe Nipple – Threaded Connector for Potable Water Systems

The 1" x 4" Lead-Free Brass Nipple is a Schedule 40 pipe section with male National Pipe Taper (NPT) threads on both ends. It is used to extend or connect female-threaded components in potable water systems and other mechanical applications requiring corrosion resistance and compliance with lead-free standards.

Manufactured from dezincification-resistant (DZR) brass alloys that comply with NSF/ANSI 61 and 372 requirements, this component is suitable for use in municipal water service lines, water heaters, and general plumbing systems subject to pressure and temperature variations.

Product Features

• ✅ Material: Lead-free brass (commonly C69300 or C46500) meeting federal Safe Drinking Water Act standards.
• ✅ Connection Type: NPT Male x NPT Male per ASME B1.20.1 thread specifications.
• ✅ Length: 4 inches overall, measured end-to-end including threaded sections.
• ✅ Temperature and Pressure Ratings: Suitable for use up to 200 PSI and service temperatures of 180°F (varies by system design and sealing method).
• ✅ Compatibility: Acceptable for installation in copper, CPVC, or PEX transition assemblies where threaded brass components are required.

Installation Guidelines

Pipe threads must be sealed with PTFE tape or a thread sealant certified for use in potable systems. Over-tightening should be avoided to prevent thread deformation. For service lines subject to inspection, the fitting must be installed in accordance with IPC/UPC codes and local plumbing regulations.

Applications

This 1" x 4" brass nipple is used in water distribution systems, boiler installations, pump connections, water heater hook-ups, and general repair assemblies. It is commonly selected for its corrosion resistance and thermal stability in both residential and commercial building systems.

Regulatory Note

Federal and state plumbing codes require that fittings in contact with drinking water comply with lead-free performance criteria—defined as a weighted average of less than 0.25% lead across wetted surfaces. This product meets all current compliance requirements under NSF/ANSI 61 and 372.

Technical Summary

• Nominal Size: 1 inch
• Length: 4 inches
• Material: Lead-Free Brass, ASTM-compliant
• Thread Standard: NPT (ASME B1.20.1)
• Certifications: NSF/ANSI 61, NSF/ANSI 372