3/8" OD Brass Compression Nut, Lead-Free

BrassCraft 61-6C 3/8" OD Compression Nut – Brass Construction for Secure Tube Connections

The BrassCraft 61-6C compression nut is designed for use with 3/8" OD tubing in compression fitting assemblies. This component provides a mechanical connection in water, gas, and air systems, eliminating the need for soldering or flaring during installation. It is compatible with copper, aluminum, and plastic tubing when used with the appropriate insert or sleeve.

Manufactured from low lead compliant brass, the 61-6C is suitable for potable water applications. Its durable construction supports use in both residential and commercial systems where reliable, leak-free performance is essential.

Product Specifications

• Material: Brass (low lead compliant, NSF 61/372)
• Size: 3/8 inch outer diameter tubing
• Hex Size: 5/8 inch
• Wall Thickness: 0.032 inch
• Inside Diameter: 0.382 inch
• Operating Pressure: Up to 200 PSI
• Temperature Range: -65°F to 250°F

Application Notes

This compression nut is used in conjunction with a compression sleeve and body to create a tight seal on tubing without deformation. Proper tightening torque and alignment are essential to prevent leakage. The nut is intended for use in non-vibration systems and should not be reused once compressed in critical applications.

Installation Considerations

For optimal performance, ensure that the nut is installed with compatible compression fittings and that tubing is clean and properly deburred. Follow standard compression fitting practices, and consult local codes where applicable. Installation is suitable for contractors experienced with compression connections in water and fluid systems.