Parker 61CL-8 Compression Tube Long Nut 11/16-20

Product Description

The PARKER 61CL-8 is a compression tube long nut designed to secure tubing connections in compression fitting assemblies. Machined from brass, it threads onto compression fittings at an 11/16-20 thread size to hold the ferrule and tube firmly in place during assembly. This long nut configuration provides additional grip and engagement compared to a standard nut, making it a reliable component in fluid and gas line installations. It is rated for temperatures ranging from -65 degrees F to 250 degrees F, making it suitable for a wide range of operating environments in plumbing, HVAC, and instrumentation applications.

This long nut is used wherever compression-style tube fittings are required. Typical applications include refrigerant line work, pneumatic systems, hydraulic instrumentation, and general plumbing tube connections. The brass construction resists corrosion and withstands moderate pressures common in these trades. It is appropriate for both residential and light commercial service work and is typically installed by licensed plumbers, HVAC technicians, or instrumentation technicians.

Key Features

• 11/16-20 thread size for precise, secure compression fitting engagement
• Brass construction provides corrosion resistance and durability
• Long nut design offers extended thread engagement for added holding strength
• Rated for use from -65 degrees F to 250 degrees F
• Compression end connection for tool-assisted tube sealing without solder or flare

Compatibility

Designed as an OEM-style replacement or service component for compression tube fitting assemblies using 11/16-20 threaded long nuts.

Installation Notes

Installation is performed by licensed plumbers or HVAC technicians following applicable codes such as the IPC or IFGC. Before servicing any line, relieve system pressure and shut off the fluid or gas supply. Hand-tighten the long nut onto the fitting body before applying a wrench to avoid cross-threading the brass threads. Do not overtighten, as brass compression components can be damaged by excessive torque.