Parker VS68AB-4-2 Compression Tube Connector Brass

Product Description

The PARKER VS68AB-4-2 is a brass compression tube connector designed to join tubing to male NPT pipe threads in hydraulic, pneumatic, and fluid transfer plumbing assemblies. It features a compression inlet and a male NPTF threaded outlet sized at 1/8-27. Rated to 400 psi maximum working pressure, this fitting handles a wide service temperature range from -65 degrees F to 250 degrees F. The brass construction provides corrosion resistance suitable for air, water, and compatible fluid systems. It meets DOT FMVSS571.106 and SAE J246 standards, making it appropriate for both vehicle and stationary plumbing applications. Licensed plumbers, HVAC technicians, and fluid system mechanics install this type of fitting.

This connector is used in residential and light commercial plumbing, refrigeration, pneumatic control lines, and mobile equipment fluid systems where a compression tube must transition to a male NPT port. The 1/8-27 thread size is common in instrument tubing, control line, and small-bore hydraulic or pneumatic circuits. Its compact size and brass body make it a standard choice for OEM assemblies and field repair work alike. Installers working with brake, fuel, or air lines on vehicles will recognize the DOT-compliant rating as a requirement for those regulated applications.

Key Features

• Compression x MNPT end connections for tool-free tube insertion with threaded port attachment
• Brass body construction for corrosion resistance in air, water, and compatible fluid media
• Rated to 400 psi maximum working pressure
• Wide temperature range: -65 degrees F to 250 degrees F
• Meets DOT FMVSS571.106 and SAE J246 standards for regulated applications
• NPTF thread standard for pressure-tight metal-to-metal seating

Compatibility

Designed as an OEM-style replacement or service fitting for compression-to-MNPT connections in plumbing, pneumatic, and fluid transfer systems requiring a 1/8-27 NPTF male thread outlet.

Installation Notes

Installation should be performed by a licensed plumber, HVAC technician, or qualified fluid systems mechanic. Shut off and depressurize the system completely before removing or installing any compression fitting. Ensure tubing is cut square, deburred, and fully seated before tightening the compression nut. NPTF threads are designed to seal on thread engagement; apply thread sealant only if required by the system specification or applicable code.