Eaton 11041 Compression Tube Nut 5/16 Inch Brass 25-pack

Product Description

The EATON 11041 is a brass compression tube nut designed to secure compression fittings on tubing with a 5/16 inch outside diameter. This nut threads onto a compression fitting body to clamp a ferrule against the tube, creating a leak-resistant mechanical seal without soldering or brazing. It is a standard component in compression-style plumbing, HVAC refrigerant line assemblies, and fluid-transfer systems wherever a removable, re-tightenable tube connection is required. Plumbers, HVAC technicians, and pipefitters install these nuts as part of compression fitting assemblies during both new construction and repair work.

This nut is suited for residential and light commercial applications involving copper or compatible soft-metal tubing at 5/16 inch OD. Typical install scenarios include water supply lines, pneumatic control tubing, and low-pressure fluid lines where a compression joint is specified. The 25-piece packaging makes this nut practical for stocking a service van or shop inventory, covering multiple connections in a single job.

Key Features

• Brass construction resists corrosion and is compatible with copper and soft-metal tubing
• Fits 5/16 inch outside diameter tubing for precise, consistent compression joint engagement
• Threaded design allows removal and retightening without replacing the fitting body
• Sold in a 25-piece pack for efficient stocking and multi-connection jobs
• No soldering or brazing required for installation

Compatibility

Designed as an OEM-style compression tube nut for use with standard compression fitting bodies and ferrules sized for 5/16 inch outside diameter tubing in plumbing and HVAC applications.

Installation Notes

Installation is performed by licensed plumbers or HVAC technicians following applicable IPC and IFGC guidelines. Always shut off and depressurize the line before disassembling or installing any compression fitting. Hand-tighten the nut onto the fitting body first, then snug with a wrench — avoid overtightening, which can crack the ferrule or distort the tube end. Inspect the tube end for burrs or deformities before assembly to ensure a proper seal.