Parker 4 Fnz-ss Compression Tube Plug Stainless Steel

Product Description

The PARKER 4 FNZ-SS is a compression-style tube plug designed to seal off an open tube end in fluid and pneumatic systems. Constructed from stainless steel, this plug offers strong corrosion resistance for use in demanding environments including water treatment, hydraulic lines, and process gas applications. It installs directly onto a compression-fitting tube end to provide a secure, leak-tight termination. The part is rated to a maximum working pressure of 10300 psi, making it suitable for high-pressure line applications. Plumbers, pipefitters, and instrumentation technicians handling tubing systems will find this plug useful for capping unused ports or isolating system branches.

This compression tube plug is used wherever a tube end requires permanent or temporary sealing within a compression-fitting system. Common install scenarios include capping branch lines during staged system buildouts, sealing unused test ports, and isolating sections of instrumentation tubing. Its stainless steel construction suits it for corrosive media, high-moisture environments, and applications where carbon steel or brass fittings are not suitable.

Key Features

• Stainless steel construction for corrosion resistance in harsh or wet environments
• Compression-style end connection for tool-assisted, leak-tight tube sealing
• Rated to 10300 psi maximum working pressure for high-pressure system use
• Compact single-piece plug design with no additional components required
• Packaged individually for single-piece installation or replacement needs

Compatibility

Designed as an OEM-style compression tube plug compatible with standard compression-fitting tube systems. No specific model or system compatibility was stated in available product data.

Installation Notes

Installation is performed by plumbers, pipefitters, or instrumentation technicians working on compression-fitting tubing systems. Depressurize and isolate the line completely before installing or removing any compression fitting. Use appropriate tube-fitting tools to achieve proper ferrule seating and a leak-tight connection. Verify the installed assembly against the system pressure rating before returning the line to service.