Parker BD-KP4430 Compression Tube Nut 1/2 in Ss 2 Pack

Product Description

The PARKER BD-KP4430 is a stainless steel compression tube nut designed to secure compression fittings on 1/2-inch outside diameter tubing. It provides a reliable, leak-resistant mechanical connection without the need for solder, flare tools, or thread sealant. Fabricated from stainless steel, this nut resists corrosion in wet, chemical-exposed, and high-humidity environments. It is sold in a package of two, making it practical for jobs requiring paired connections or a backup on hand. Licensed plumbers, HVAC technicians, and refrigeration mechanics routinely specify stainless compression hardware where carbon steel fittings are not appropriate for the service environment.

This compression tube nut is suited for use in plumbing, HVAC, and fluid-handling systems where 1/2-inch OD tubing is terminated with compression-style end connections. Typical applications include instrument lines, water supply connections, and refrigerant or process-fluid tubing runs in both residential and light commercial installations. The stainless steel construction makes it a common choice in corrosive or sanitary service environments where longevity under continuous fluid exposure is required.

Key Features

• Stainless steel construction resists corrosion in wet and chemically aggressive environments
• Compression end connection type eliminates the need for soldering or flaring
• Sized for 1/2-inch tube outside diameter for consistent, secure fitment
• Sold as a 2-pack, providing two nuts per package
• Compatible with standard Parker compression fitting bodies and ferrules

Compatibility

Designed as an OEM-style compression tube nut for use with Parker compression fitting assemblies on 1/2-inch OD tubing in plumbing, HVAC, and fluid-handling applications.

Installation Notes

Installation is typically performed by a licensed plumber or HVAC technician. Before servicing any fitting, shut off the fluid supply and relieve system pressure completely. Finger-tighten the nut onto the fitting body first, then use an appropriate wrench to snug the connection; do not overtighten, as over-compression can deform the ferrule and cause leaks. Verify the connection for leaks after restoring system pressure.