Parker BD-KP4373 Brass Compression Tube Ferrule 1/4 in

Product Description

The PARKER BD-KP4373 is a brass compression tube ferrule designed to create a secure, leak-resistant seal in compression-style tube fittings. The ferrule seats against the fitting body and compression nut, biting into the outer wall of the tubing as the connection is tightened. It is sized for 1/4-inch tube outside diameter and is constructed from brass, making it suitable for use in fluid and gas distribution systems where corrosion resistance and reliable sealing are required. This type of fitting component is commonly installed by licensed plumbers, HVAC technicians, and instrumentation mechanics working on copper or compatible soft-metal tubing runs.

This ferrule is appropriate for residential and light commercial applications where compression-style connections are specified. Typical install scenarios include refrigerant lines, potable water supply lines, pneumatic control tubing, and fuel gas distribution where compression fittings are code-permitted. It is sold in a package quantity of 10, making it practical for service technicians stocking spare hardware or contractors completing multiple connections on a single job.

Key Features

• Brass construction provides corrosion resistance in fluid and gas service
• Sized for 1/4-inch tube outside diameter compression connections
• Compatible with standard compression fitting bodies and nuts of the same OD rating
• Packaged in quantities of 10 for efficient stocking and field use
• Fitting type meets UNSPSC Code 27121700 for fluid and pneumatic fittings classification

Compatibility

Designed as an OEM-style replacement ferrule for standard compression tube fittings accepting a 1/4-inch tube outside diameter.

Installation Notes

Installation should be performed by a qualified plumber, HVAC technician, or instrumentation mechanic. Shut off and depressurize the system before disassembling any compression fitting. Seat the ferrule squarely on the tubing before threading the compression nut onto the fitting body to avoid cross-threading or uneven bite. Do not over-tighten compression nuts, as excess force can distort the ferrule and cause leaks rather than prevent them.