Parker 68C-10-8 Compression Tube Connector 5/8 in Od Brass

Product Description

The PARKER 68C-10-8 is a brass compression tube connector designed to join 5/8-inch outside diameter tubing to a male NPT threaded port. It uses a compression fitting on one end and a 1/2-14 MNPT threaded connection on the other, making it a reliable choice for creating leak-resistant tube-to-pipe transitions in fluid and gas systems. Rated to 150 psi maximum working pressure with a temperature range of -65 degrees F to 250 degrees F, this connector meets SAE J-512 standards. Licensed plumbers, HVAC technicians, and pipefitters install this fitting in low-pressure hydraulic, pneumatic, and refrigeration-adjacent tubing applications.

This connector is suited for residential and light commercial installations where compression-style tube fittings are required to transition into NPT-threaded ports. Typical applications include instrument tubing, fuel lines, air lines, and fluid-handling circuits where a permanent, vibration-resistant connection is needed. The NPTF thread standard provides a pressure-tight seal at the threaded end without relying solely on thread sealant. It is sold individually and is appropriate for new installations and repair work alike.

Key Features

• Compression x MNPT end connections for tube-to-pipe transitions
• Brass construction for corrosion resistance and durability
• 5/8-inch tube outside diameter compatibility
• 1/2-14 NPTF thread size for a pressure-tight threaded seal
• Rated to 150 psi maximum working pressure
• Meets SAE J-512 standard for compression tube fittings

Compatibility

Designed as an OEM-style compression fitting for 5/8-inch OD tubing systems requiring a 1/2-14 MNPT threaded port connection in low-pressure fluid or gas applications.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or qualified HVAC technician. Shut off and depressurize the system completely before removing or installing any fitting. Compression fittings require the ferrule to be seated correctly against the tubing; do not overtighten, as this can crack the ferrule or deform the tube. Apply thread sealant or PTFE tape to the NPTF male threads as appropriate for the fluid service and verify the connection is leak-free before returning the system to service.