Parker 61C-8 Compression Tube Nut 11/16-20 Brass

Product Description

The PARKER 61C-8 is a brass compression tube nut designed for use in fluid and pneumatic line connections requiring a reliable, leak-resistant fitting. Threaded at 11/16-20, this nut conforms to SAE J-512 standards and is rated for a maximum working pressure of 200 psi. Constructed from brass, it offers good corrosion resistance and is suitable for a wide range of fluid handling applications. Licensed plumbers, HVAC technicians, and refrigeration mechanics install this type of fitting when assembling or servicing compression tube connections in both residential and light commercial systems.

This compression tube nut is used in tubing assemblies where a standard SAE J-512 compression fitting is specified. It is suited for installations involving copper or compatible soft tubing in hydraulic, pneumatic, fuel, and refrigeration lines. The temperature rating spans from -65 degrees F to 250 degrees F, making it appropriate for both low-temperature refrigeration service and moderate-heat fluid systems. It is sold individually but must be ordered in a minimum quantity of 5 units.

Key Features

• Brass construction provides corrosion resistance and durability in fluid handling service
• 11/16-20 thread size conforms to SAE J-512 standard for compression fittings
• Rated to 200 psi maximum working pressure
• Wide temperature range: -65 degrees F to 250 degrees F
• Compression end connection for leak-resistant tube assembly without soldering

Compatibility

Designed as an OEM-style replacement or service fitting for compression tube assemblies requiring an 11/16-20 SAE J-512 nut in brass construction.

Installation Notes

This fitting is installed by licensed plumbers, HVAC technicians, or refrigeration mechanics working on compression tube assemblies. Depressurize and isolate the line before disassembling any existing fitting. Hand-tighten the nut onto the fitting body first, then snug with a wrench — avoid overtightening, which can deform the ferrule and cause leaks. Verify system pressure does not exceed the 200 psi rating before returning the line to service.