Parker MP11033 Compression Tube Sleeve Brass 5/16 in

Product Description

The PARKER MP11033 is a brass compression tube sleeve designed to create a reliable, leak-resistant connection in compression fitting assemblies. The sleeve seats between the compression nut and the fitting body, biting into the tube wall to form a permanent mechanical seal when the nut is tightened. Rated to 300 psi maximum working pressure, this sleeve is manufactured in brass and conforms to SAE J-512 standards. It carries a 5/16-inch tube outside diameter and operates across a temperature range of -65 degrees F to 250 degrees F. Licensed plumbers, HVAC technicians, and refrigeration mechanics routinely specify SAE J-512 compression hardware for fuel, hydraulic, and pneumatic line work.

This compression sleeve is suited for use in residential and light commercial systems where tube lines require a secure, vibration-resistant connection without the need for flaring or soldering. Typical applications include fuel supply lines, refrigerant-adjacent tubing, pneumatic control circuits, and hydraulic instrument lines. The SAE J-512 designation makes it a recognized choice for OEM assemblies and field service replacement work on tubing runs that demand a consistent, repeatable seal under sustained pressure.

Key Features

• Brass construction resists corrosion and is compatible with a wide range of fluid media
• 300 psi maximum working pressure rating for dependable service under sustained load
• Fits 5/16-inch outside diameter tubing for precise, consistent sleeve engagement
• Conforms to SAE J-512 compression fitting standards for verified dimensional accuracy
• Rated for use from -65 degrees F to 250 degrees F across varied service environments
• No soldering, brazing, or flaring required for installation

Compatibility

Designed as an OEM-style replacement compression sleeve for use with SAE J-512 compression fittings on 5/16-inch outside diameter tubing in plumbing, HVAC, and fluid-handling applications.

Installation Notes

Installation is performed by licensed plumbers, HVAC technicians, or qualified mechanics working on tubing systems. Shut off all fluid or gas supply and relieve system pressure completely before disassembling any compression fitting. Slide the sleeve onto the tube before threading the compression nut, ensuring the sleeve is seated squarely against the fitting body. Do not over-tighten the compression nut, as excessive force can deform the sleeve and compromise the seal.