Parker 61CL-4 Compression Tube Long Nut 7/16-24

Product Description

The PARKER 61CL-4 is a brass compression tube long nut designed for use in compression tube fitting assemblies. It provides a secure, leak-resistant connection by threading onto the fitting body and drawing the ferrule against the tubing to create a seal. Rated for a maximum working pressure of 300 psi and a temperature range of -65 to 250 degrees F, the 61CL-4 is built for reliable service in fluid and pneumatic line applications. The 7/16-24 thread size conforms to SAE J-512, making it a recognized standard in mobile and industrial fluid power systems. Licensed plumbers, HVAC technicians, and industrial pipefitters are the typical installers.

This long nut is suited for residential and commercial fluid system applications where SAE J-512 compression fittings are specified. The extended nut length provides additional thread engagement, which is useful in installations where tubing alignment or vibration is a concern. It is commonly used in refrigeration, hydraulic, fuel, and pneumatic tubing lines that require a reliable compression-style connection without brazing or flaring.

Key Features

• Brass construction for corrosion resistance in fluid and pneumatic service
• 7/16-24 thread size conforming to SAE J-512 standard
• Rated to 300 psi maximum working pressure
• Temperature range of -65 to 250 degrees F
• Long nut design provides extended thread engagement for improved joint stability
• Compression end connection eliminates the need for brazing or flaring

Compatibility

Designed as an OEM-style replacement or service component for compression tube fitting assemblies using SAE J-512 7/16-24 threaded long nuts in fluid power, refrigeration, and pneumatic tubing systems.

Installation Notes

Installation is typically performed by a licensed plumber, HVAC technician, or qualified pipefitter. Shut off and depressurize the fluid or pneumatic line completely before disassembling any fitting. Ensure tubing is cut cleanly and squarely before seating the ferrule and threading the long nut onto the fitting body. Do not overtighten; follow applicable system codes and the fitting manufacturer's assembly guidelines to avoid ferrule damage or thread stripping.