1/4" OD Brass Flared Nut

BrassCraft 41S-4 – 1/4" Flared Brass Nut for Precision Tube Connections

The BrassCraft 41S-4 flared nut is designed to provide a secure, pressure-resistant connection in flared tubing systems. This 1/4" nominal size nut features a 7/16-20 straight thread and is engineered for compatibility with copper, aluminum, brass, and welded steel tubing that can be flared to specification.

Manufactured from corrosion-resistant brass, this fitting is suitable for fluid and gas applications across HVAC, fuel, refrigeration, and other mechanical systems. Its hexagonal body allows for easy tightening with standard wrenches, and its mechanical integrity supports installations subject to vibration or thermal expansion.

Features

• Material: Brass for corrosion resistance and mechanical strength
• Connection Type: Flared, 7/16-20 straight thread
• Nominal Tubing Size: 1/4 inch
• Length: 3/4 inch
• Hex Size: 9/16 inch
• Operating Temperature: -65°F to 250°F
• Application: For use in fuel, air, refrigeration, and hydraulic service lines

Installation Guidance

This fitting is intended for use with properly flared tubing ends. Ensure the flare is clean, concentric, and dimensionally correct to prevent leaks or mechanical failure. Tighten with appropriate tools to the specified torque. Installation should be performed by qualified personnel following applicable mechanical and plumbing codes.