Parker VS68NTA-4-4 Compression Tube Connector 1/4 in

Product Description

The PARKER VS68NTA-4-4 is a brass compression tube connector designed to join compression tubing to a male NPT threaded port. It features a Compression x MNPT end configuration with a 1/4-inch thread size conforming to NPTF thread standard. Built from brass, this fitting handles a maximum working pressure of 150 psi and operates across a temperature range of -40 degrees F to 200 degrees F. It meets D.O.T. FMVSS571.106, SAE J1131, and SAE J246 standards, making it a compliant choice for hydraulic, pneumatic, and fluid-transfer applications where a reliable compression-to-NPT transition is required.

This connector is used in residential and light commercial plumbing, HVAC refrigerant and control-line tubing, and fluid system assemblies where a leak-free compression fitting is needed at an NPT port entry point. The brass construction suits potable water, refrigerant, air, and hydraulic fluid service. Licensed plumbers, HVAC technicians, and fluid-system mechanics typically install this fitting in panel assemblies, equipment manifolds, and tubing runs where a compression-to-NPT transition is called for.

Key Features

• Brass construction for corrosion resistance across a wide range of fluids and gases
• Compression x MNPT end connections for a straightforward tube-to-threaded-port transition
• Rated to 150 psi maximum working pressure
• Temperature range of -40 degrees F to 200 degrees F
• Meets D.O.T. FMVSS571.106, SAE J1131, and SAE J246 compliance standards
• 1/4-inch NPTF thread size for precise fit at standard NPT ports

Compatibility

Designed as an OEM-style replacement or service fitting for compression tube-to-NPT applications in HVAC, plumbing, and fluid-transfer systems requiring compliance with DOT and SAE standards.

Installation Notes

Installation should be performed by a licensed plumber, HVAC technician, or qualified mechanic following applicable codes such as the IPC or IFGC. Depressurize and isolate the system fully before removing or installing any compression fitting. Hand-tighten the compression nut onto the tubing ferrule, then advance with a wrench only as needed to achieve a leak-free seal — do not overtighten brass compression fittings. Verify for leaks at operating pressure before returning the system to service.