Parker 4FBC2N-B Bulkhead Female Connector 1/8 Inch

Product Description

The PARKER 4FBC2N-B is a compression tube bulkhead female connector designed for routing tubing through a panel, bulkhead, or enclosure wall while maintaining a secure, leak-resistant seal. Constructed from brass conforming to ASME-SB75 and ASTM-B75 standards, this fitting connects a compression tube end to a female NPT threaded port. It has a maximum working pressure of 3500 psi and an overall length of 1.31 inches. The 1/8 inch thread size makes it suitable for small-bore tubing runs in instrumentation, refrigeration, hydraulic, and pneumatic systems. Licensed plumbers, HVAC technicians, and instrumentation mechanics are the typical installers.

This fitting is used in applications where tubing must pass through a panel wall and terminate on both sides with secure connections. Common install scenarios include instrument panels, control cabinets, refrigeration equipment, and OEM machine assemblies where a bulkhead-style fitting is required to maintain pressure integrity through a structural wall. Its compression-by-FNPT configuration allows direct connection to female-threaded ports on valves, manifolds, or fittings on one side, with a compression sleeve connection to the tubing on the other.

Key Features

• Bulkhead-style body for through-panel tube routing with a sealed, pressure-rated connection
• Compression x FNPT end connections for versatile hookup to threaded and tube-end components
• Brass construction per ASME-SB75 and ASTM-B75 for corrosion resistance in fluid and gas service
• Rated to 3500 psi maximum working pressure
• Compact 1.31 inch overall length for use in tight panel installations
• 1/8 inch thread size suitable for small-bore tubing applications

Compatibility

Cross-references to Swagelok part number B-400-71-2. Designed as an OEM-style replacement or direct-install compression bulkhead fitting for small-bore tubing systems requiring a 1/8 inch FNPT thread interface.

Installation Notes

Installation should be performed by a licensed plumber, HVAC technician, or qualified instrumentation mechanic. De-pressurize the system completely and isolate the line before removing or installing any compression fitting. Ensure the panel or bulkhead hole diameter matches the fitting body before threading the locknut. Do not overtighten the compression nut, as this can deform the ferrule and compromise the seal.