Parker 63PT-5-40 Compression Tube Insert 5/16 Inch Brass

Product Description

The PARKER 63PT-5-40 is a compression tube insert fitting made from brass, designed to reinforce the end of soft tubing used in compression-style connections. The insert slides inside the tube to prevent collapse when the compression nut and ferrule are tightened, maintaining a reliable, leak-free seal. It is sized for 5/16 inch tube outside diameter and measures 0.5 inches in overall length. This fitting handles temperatures from -65 degrees F to 250 degrees F, making it suitable for a wide range of fluid and pneumatic system applications. Plumbers, HVAC technicians, and fluid system technicians install this type of hardware as a standard part of compression fitting assemblies.

This insert is used wherever soft tubing such as copper or plastic requires internal support at a compression fitting joint. Typical applications include residential and light commercial plumbing, refrigeration lines, pneumatic control tubing, and hydraulic instrument lines. The brass construction resists corrosion in contact with water, oil, and many common system fluids. It is a direct component in any system using Parker-compatible compression fittings with 5/16 inch OD tubing. This SKU is sold individually but requires a minimum order of 5 units.

Key Features

• Reinforces soft tubing at compression fitting joints to prevent collapse under clamp load
• Sized for 5/16 inch tube outside diameter
• 0.5 inch overall length for compact installation in tight spaces
• Brass construction provides corrosion resistance across common plumbing and refrigeration fluids
• Rated for service from -65 degrees F to 250 degrees F
• Compatible with standard compression nut and ferrule assemblies

Compatibility

Designed for use with compression fittings that accept 5/16 inch outside diameter tubing. No specific model or system compatibility data was provided in the product input.

Installation Notes

Installation is performed by plumbers, HVAC technicians, or instrumentation technicians working on compression tubing systems. Before service, shut off and depressurize the line being worked on. Insert this fitting fully into the tube end before seating the tube into the compression body. Do not overtighten the compression nut, as excessive force can deform the ferrule or the insert and cause leaks.