Parker 170C-6-4 Compression Female Elbow 1/4-18 Fnpt

Product Description

The PARKER 170C-6-4 is a brass compression tube female elbow designed to connect compression tubing to female NPT threaded ports at a 90-degree angle. This fitting transitions from a compression-style tube end to a 1/4-18 FNPT thread, allowing a secure, leak-resistant connection in pneumatic and fluid transfer lines. Built to SAE J-512 standards, it handles working pressures up to 200 psi and temperatures ranging from -65 degrees F to 250 degrees F. The all-brass construction resists corrosion and is well suited for use with copper or compatible soft tubing. Licensed plumbers, HVAC technicians, and pipefitters commonly install this fitting in refrigeration, hydraulic, and general-purpose plumbing applications.

This elbow fitting is used in both residential and light commercial installations where a direction change is needed in a tubing run terminating at a female pipe thread port. Typical scenarios include connecting instrumentation tubing, refrigerant or oil lines, and pneumatic control circuits to threaded valve bodies, manifolds, or panel fittings. The compression end eliminates the need for flaring or soldering at the tube connection, making it practical for field repairs and new installations alike.

Key Features

• 90-degree female elbow configuration routes tubing in tight spaces without bending
• Compression x FNPT end connections for tool-accessible, solder-free assembly
• 1/4-18 NPTF thread size for a pressure-tight pipe thread seal
• Rated to 200 psi maximum working pressure
• Wide temperature range: -65 degrees F to 250 degrees F
• Meets SAE J-512 standard for compression tube fittings
• Brass construction resists corrosion in wet and humid environments

Compatibility

Designed as an OEM-style compression tube fitting compatible with standard compression tubing and 1/4-18 NPTF female pipe thread ports in pneumatic, refrigeration, and fluid transfer systems conforming to SAE J-512.

Installation Notes

Installation is typically performed by a licensed plumber, pipefitter, or HVAC technician. Shut off and depressurize the system completely before removing or installing any fitting. Ensure the compression nut and ferrule are properly seated on the tubing before tightening; do not overtighten, as this can deform the ferrule or damage the fitting body. Thread sealant or tape may be applied to the NPTF threads per the installer's standard practice and applicable plumbing codes.