Parker 8-4 Fbz-b Compression X Mnpt Brass Connector

Product Description

The PARKER 8-4 FBZ-B is a brass compression tube connector designed to join a compression tube end to a male NPT threaded port. The fitting is rated for a maximum working pressure of 2200 psi, making it suitable for high-pressure fluid and gas line applications in HVAC, refrigeration, pneumatic, and hydraulic systems. Constructed from brass, it provides good corrosion resistance and reliable sealing across a wide range of service conditions. The 1/4 inch thread size accommodates common small-bore tubing runs. Licensed plumbers, HVAC technicians, and pipefitters are the primary installers of this type of compression fitting.

This connector is used wherever a compression tube connection must transition to a male NPT threaded port in residential or light commercial systems. Typical applications include instrumentation lines, refrigerant-side service connections, pneumatic control tubing, and small-bore hydraulic circuits. The brass body makes it compatible with water, oil, air, and many non-corrosive gases. It is sold individually and is suited for both new installations and repair work requiring a secure, leak-resistant tube-to-thread transition.

Key Features

• Brass construction provides corrosion resistance and long service life
• Maximum working pressure of 2200 psi supports high-pressure line applications
• 1/4 inch thread size fits common small-bore tubing configurations
• Compression x MNPT end connections allow tube-to-threaded-port transitions without soldering or flaring
• Compact connector form factor suits tight installation spaces
• Sold as a single unit with no minimum order quantity beyond one piece

Compatibility

Designed as an OEM-style replacement or direct-install fitting for systems requiring a 1/4 inch compression-to-male NPT connection in brass. Cross-reference Swagelok part number B-810-1-4 for equivalency verification.

Installation Notes

Installation is typically performed by a licensed plumber, HVAC technician, or pipefitter in accordance with applicable mechanical and plumbing codes. Shut off and depressurize the line completely before removing or installing any compression fitting. Hand-tighten the compression nut first, then use an appropriate wrench to snug the connection — do not overtighten, as brass fittings can be damaged. Apply thread sealant or PTFE tape to the male NPT threads per the system fluid compatibility requirements before making up the threaded end.