Parker 8-4 Fbz-ss Compression Tube Connector 1/4 in Mnpt

Product Description

The PARKER 8-4 FBZ-SS is a stainless steel compression-to-male NPT tube connector designed for high-pressure fluid and gas line applications. It joins a compression-style tube end to a 1/4-inch male NPT threaded port, making it a go-to fitting for instrumentation lines, hydraulic circuits, and process piping where a secure, leak-resistant mechanical connection is required. The stainless steel construction handles demanding service environments, and the fitting is rated to 6,300 psi maximum working pressure. Plumbers, HVAC technicians, and industrial pipefitters install this type of fitting when connecting tubing to threaded equipment ports or manifolds.

This connector is suited for residential and commercial applications where compression tubing meets a male NPT threaded port. Common installation scenarios include instrument tubing runs, refrigeration sensing lines, compressed air sub-circuits, and hydraulic control lines. The 1/4-inch thread size and compression-by-MNPT end configuration make it appropriate for small-bore tubing systems requiring a rated, reliable seal without welding or flaring.

Key Features

• Stainless steel construction for corrosion resistance in wet, chemical, or high-cycle environments
• 6,300 psi maximum working pressure rating
• 1/4-inch male NPT thread on one end with compression fitting on the other
• Compact overall length of 1.71 inches for tight-space installation
• Compression connection eliminates the need for flaring or soldering

Compatibility

Designed as an OEM-style replacement or new-installation fitting for systems using 1/4-inch male NPT threaded ports paired with compression tube connections in high-pressure fluid or gas service.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or qualified HVAC technician familiar with compression fitting assembly. Depressurize and isolate the line completely before removing any existing fittings or making new connections. Thread engagement should follow applicable IPC or ASME B1.20.1 standards for NPT connections; use appropriate thread sealant on the male NPT end. Do not overtighten the compression nut, as this can damage the ferrule and compromise the seal.