Parker 61C-7 Compression Tube Nut 5/8-24 Brass

Product Description

The PARKER 61C-7 is a brass compression tube nut designed to secure tubing connections in fluid and pneumatic systems. It threads onto the mating fitting body at a 5/8-24 thread size and clamps the compression sleeve against the tube outside diameter of 7/16 inches to create a leak-resistant mechanical seal. Rated to 200 psi maximum working pressure and suitable for temperatures ranging from -65 degrees F to 250 degrees F, this nut handles a broad range of service conditions. It conforms to SAE J-512 standards, making it a recognized choice for hydraulic and refrigeration tube assemblies. Licensed tradespeople and experienced technicians install this component in both new construction and service replacement applications.

This compression tube nut is used in residential and commercial fluid systems where tubing must be terminated or joined at a fitting body. Typical applications include refrigeration lines, hydraulic circuits, fuel systems, and other plumbing assemblies that require a reliable, tool-tightened compression connection. The brass construction offers corrosion resistance in environments where moisture or mild chemicals are present. It is sold individually but must be ordered in multiples of 5 units per SAE J-512 guidelines and supplier minimums.

Key Features

• 5/8-24 thread size for positive engagement with compatible compression fitting bodies
• Accepts tubing with a 7/16 inch outside diameter
• Rated to 200 psi maximum working pressure
• Operating temperature range of -65 degrees F to 250 degrees F
• Brass construction provides corrosion resistance and reliable sealing under torque
• Conforms to SAE J-512 standard for compression tube fittings

Compatibility

Designed as an SAE J-512 compression tube nut for use with 7/16 inch outside diameter tubing and compatible 5/8-24 compression fitting bodies in hydraulic, refrigeration, fuel, and general fluid system assemblies.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or hydraulic system technicians. Depressurize and isolate the system completely before disassembling or installing any compression fitting. Ensure the tubing end is cut cleanly and deburred before seating the nut and sleeve onto the tube. Hand-tighten the nut first to confirm thread engagement, then use an appropriately sized wrench to achieve a proper compression seal without over-torquing the brass threads.