1/2″ x 5-1/2″ Red Brass Nipple – Machined for High-Integrity Connections
The 1/2″ x 5-1/2″ Red Brass Nipple is manufactured from lead-free alloy C69300 or equivalent, offering enhanced corrosion resistance and strength for potable water and mechanical piping systems. This fitting is designed for applications where dimensional consistency and long-term reliability are required under pressure and temperature fluctuations.
Performance and Construction Features
- Lead-Free Composition: Complies with Safe Drinking Water Act (SDWA) limits; certified for use in potable water systems in all U.S. jurisdictions.
- Corrosion Resistance: Suitable for aggressive water chemistries; resists dezincification, pitting, and scale formation in copper-alloy systems.
- Machined Threads: Threads conform to ANSI/ASME B1.20.1 for NPT engagement, ensuring a uniform, leak-resistant seal across both ends.
- High Pressure Compatibility: Rated for use in systems up to 200 PSI; suitable for both hot and cold water supply lines and heating circuits.
Dimensional and Technical Data
- Nominal Pipe Size: 1/2 inch
- Overall Length: 5-1/2 inches
- End Connections: Male NPT x Male NPT
- Material: Red Brass (typically UNS C69300 or C23000, depending on application)
- Certifications: NSF/ANSI 61 & 372, compliant with federal lead-free mandates
Installation Guidelines
Use PTFE thread seal tape or approved anaerobic thread compound when joining to female-threaded fittings. Avoid over-torquing to prevent thread distortion. Always verify alignment with local plumbing code requirements. This component is suited for solderless installation methods and is typically used in compression, threaded, or press-adapted assemblies.
Application Environments
Commonly used in both commercial and residential installations, including:
- Potable water distribution
- Boiler and hydronic heating circuits
- Chilled water return lines
- Transition connections in multi-metal systems
Compliance Advisory
All brass fittings used in drinking water systems must meet low-lead requirements under the Reduction of Lead in Drinking Water Act. This product conforms to the 0.25% weighted average lead content threshold.
The 1/2″ x 5-1/2″ Red Brass Nipple delivers mechanical strength, dimensional accuracy, and verified safety for pressure-rated plumbing systems. Its metallurgical integrity and corrosion resistance make it an optimal choice for demanding applications that require long-term service without degradation.








