Parker 4-6 Gbz-b Compression X Fnpt Brass Connector 3/8

Product Description

The PARKER 4-6 GBZ-B is a straight brass compression tube connector designed to join 3/8 inch compression tubing to a female NPT (FNPT) threaded port in a single, inline configuration. Constructed from brass per ASTM-B-453 and ASTM-B16 standards, this fitting delivers a maximum working pressure of 3500 psi, making it suitable for demanding fluid and gas distribution systems. At 1.48 inches overall length and weighing just 0.13 pounds, it is a compact, reliable solution. Licensed plumbers, HVAC technicians, and industrial pipefitters commonly install this fitting in refrigeration, compressed air, hydraulic, and instrumentation line assemblies.

This connector is appropriate for both commercial and light industrial applications where a compression tube must transition to an FNPT threaded port on a valve, manifold, gauge, or equipment fitting. The straight fitting shape allows direct, low-profile connections in tight spaces. Its brass construction resists corrosion in water, air, and many common fluid service environments, making it a standard choice for mechanical rooms, equipment panels, and process piping installations.

Key Features

• 3/8 inch compression x FNPT end connections for direct tube-to-thread transitions
• Maximum working pressure of 3500 psi for high-pressure fluid and gas service
• Brass construction per ASTM-B-453 and ASTM-B16 for corrosion resistance and pressure integrity
• Straight fitting shape enables compact, inline installations
• Overall length of 1.48 inches for low-profile fitment in confined spaces
• Swagelok cross-reference part number B-400-7-6 for compatibility verification

Compatibility

Designed as an OEM-style compression fitting for use in residential, commercial, and light industrial piping systems requiring a 3/8 inch compression tube to FNPT threaded port connection.

Installation Notes

Installation should be performed by a licensed plumber, HVAC technician, or qualified pipefitter in accordance with applicable mechanical codes such as the IPC or IFGC. Shut off and depressurize the system completely before disconnecting or installing any compression fitting. Hand-tighten the compression nut onto the fitting body, then apply the appropriate number of turns with a wrench as required for the tubing material being used. Do not overtighten, as this can deform the ferrule and compromise the seal.