Parker 68C-4-2 Compression Tube Connector 1/4 in Od Brass

Product Description

The PARKER 68C-4-2 is a brass compression tube connector designed to join 1/4-inch OD tubing to a male NPTF threaded port using a 1/8-27 thread size. It conforms to SAE J-512 standards and is rated for a maximum working pressure of 300 psi and a temperature range of -65 degrees F to 250 degrees F. The compression-style end requires no flaring or soldering, making it a practical choice for plumbers, HVAC technicians, and instrumentation technicians working on fluid or gas lines in tight spaces or field repair situations.

This connector is suited for residential and light commercial applications where a reliable tube-to-pipe transition is needed. Typical use cases include refrigeration lines, pneumatic control circuits, fuel and hydraulic lines, and instrumentation tubing runs. The Compression x MNPT configuration allows connection directly to NPT-threaded fittings, valves, or ports without additional adapters. It is a standard catalog fitting appropriate for shops, service trucks, and maintenance applications wherever 1/4-inch OD tubing terminates at a threaded port.

Key Features

• Compression x MNPT end connections eliminate the need for flaring or soldering
• Brass construction provides corrosion resistance and durability in fluid and gas service
• Rated to 300 psi maximum working pressure for reliable performance in pressurized systems
• Wide temperature range of -65 degrees F to 250 degrees F suits diverse service environments
• Conforms to SAE J-512 standard for compression tube fittings
• NPTF thread standard ensures a pressure-tight mechanical seal at the male threaded end

Compatibility

Designed as an OEM-style compression tube connector for use with 1/4-inch OD tubing systems terminating at 1/8-27 NPTF male threaded ports in plumbing, HVAC, refrigeration, and instrumentation applications.

Installation Notes

Installation should be performed by a licensed plumber, HVAC technician, or qualified instrumentation technician. Depressurize and drain the system completely before disassembling any fittings. Ensure the tubing end is cut squarely and is free of burrs before inserting into the compression fitting to achieve a proper seal. Follow applicable codes such as the IPC or IFGC for piping system assembly and pressure testing requirements.