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The PARKER 61NTA-10 is a brass compression tube nut designed to create secure, leak-free connections in compressed air, hydraulic, and fluid transfer lines. It threads onto a compression fitting body to retain the tube and ferrule during assembly, producing a reliable mechanical seal without welding or soldering. Rated to 150 psi maximum working pressure and compatible with 5/8-inch outside diameter tubing, this nut meets D.O.T. FMVSS571.106, SAE J1131, and SAE J246 standards. Brass construction provides corrosion resistance and durability across a wide temperature range of -40 to 200 degrees F. Plumbers, HVAC technicians, and fluid-system mechanics install this fitting in both mobile and stationary applications.
The 61NTA-10 is suited for use in hydraulic brake lines, pneumatic systems, fuel lines, and general fluid-conveyance assemblies where DOT and SAE compliance is required. It is commonly installed in commercial vehicle brake systems, industrial plumbing runs, and HVAC refrigerant or fluid-line connections. The 5/8-inch OD tube size makes it a practical choice for medium-bore line assemblies in both residential and light commercial service environments.
Designed as an OEM-style compression tube nut for 5/8-inch OD tubing assemblies requiring DOT and SAE-compliant fittings in fluid and pneumatic line systems.
Licensed plumbers and qualified fluid-systems technicians should install this fitting. Depressurize and drain the line fully before disassembly or replacement. Hand-tighten the nut onto the fitting body first, then use an appropriately sized open-end wrench to complete the connection; avoid over-tightening, which can damage the ferrule or tube. Installations on vehicle brake systems must comply with applicable D.O.T. and SAE requirements.
WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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