Parker 61HD-4 Compression Tube Sleeve Brass 2100 Psi

Product Description

The PARKER 61HD-4 is a brass compression tube sleeve designed to create a secure, leak-resistant connection in compression-style tube fittings. The sleeve seats between the fitting body and nut to grip the tubing as the connection is tightened, forming a reliable mechanical seal without solder or flare. Rated to 2100 psi maximum working pressure, it suits high-demand fluid and gas line applications. The brass construction provides corrosion resistance and machinability. This component is commonly installed by HVAC technicians, plumbers, and hydraulic system mechanics working with compression-type tubing assemblies.

The 61HD-4 sleeve is suited for use in residential and light commercial systems where compression fittings are the specified connection method. Typical applications include refrigeration lines, hydraulic tubing, and instrumentation plumbing where tube-to-fitting integrity is critical. The 7/16-24 straight thread size aligns with standard compression fitting assemblies in these service categories. Operating temperature range spans -65 degrees F to 249 degrees F, making it viable across a wide range of indoor and outdoor service conditions.

Key Features

• Brass construction for corrosion resistance and reliable seating under compression load
• Maximum working pressure of 2100 psi for high-demand tubing systems
• 7/16-24 straight thread size fits standard compression fitting assemblies
• Wide temperature range: -65 degrees F to 249 degrees F
• Compression end connection — no solder, flare, or adhesive required
• Lightweight at 0.02 pounds per piece

Compatibility

Designed as an OEM-style replacement or service component for compression-style tube fitting assemblies using a 7/16-24 straight thread interface. Confirm tubing outer diameter and fitting series compatibility before installation.

Installation Notes

Installation is typically performed by licensed HVAC technicians, plumbers, or hydraulic system mechanics. Before servicing any pressurized line, relieve system pressure completely and isolate the line per applicable codes. Seat the sleeve squarely over the tubing before threading and tightening the compression nut — cross-threading or over-tightening can deform the sleeve and compromise the seal. Refer to PARKER fitting assembly instructions for proper tightening procedure for this compression series.