Parker 61AB-6 Compression Tube Nut Brass 400 Psi

Product Description

The PARKER 61AB-6 is a brass compression tube nut designed for use in hydraulic and pneumatic tubing assemblies where a secure, leak-resistant mechanical connection is required. Machined from brass, this nut mates with a compression fitting body to grip and seal tubing without the need for flare or solder. It carries a maximum working pressure rating of 400 psi and is rated for a temperature range of -65 degrees F to 250 degrees F. Licensed plumbers, HVAC technicians, and fluid-system mechanics install this fitting type in both industrial and mobile equipment applications. It meets D.O.T. FMVSS571.106 and SAE J246 standards.

The 61AB-6 is suited for compression-style tubing connections in brake line, fuel line, refrigeration, and fluid-transfer assemblies where DOT and SAE compliance is required. Its brass construction makes it appropriate for use with copper and compatible soft-metal tubing in both mobile and stationary service environments. Technicians typically use this nut as part of a complete compression fitting assembly involving a body and ferrule.

Key Features

• Brass construction provides corrosion resistance and reliable seating on soft-metal tubing
• Compression end connection — no flare, solder, or brazing required
• 400 psi maximum working pressure rating
• Wide temperature range: -65 degrees F to 250 degrees F
• Meets D.O.T. FMVSS571.106 and SAE J246 standards for mobile and fluid-system applications
• 0.384 inch inside diameter for precise tubing fitment

Compatibility

Designed as an OEM-style compression tube nut compatible with Parker compression fitting bodies and ferrules in assemblies requiring DOT FMVSS571.106 and SAE J246 compliance.

Installation Notes

Installation is performed by qualified plumbers, HVAC technicians, or fluid-system mechanics. Depressurize and drain the line completely before disassembly or fitting installation. Hand-tighten the nut onto the fitting body before applying a wrench to avoid cross-threading. Follow SAE J246 torque and assembly guidelines for compression fittings — do not overtighten, as brass compression nuts are susceptible to deformation under excessive force.