Parker 169PS-6-4 Compression Swivel Elbow 3/8 Tube 1/4 Mnpt

Product Description

The PARKER 169PS-6-4 is a brass compression tube swivel elbow fitting designed to connect 3/8-inch OD tubing to a 1/4-inch male NPT (MNPT) port at a 90-degree angle. The swivel design allows the fitting to rotate during installation, making it easier to align tubing without twisting or stressing the line. End connections are compression on the tube side and MNPT on the thread side. Brass construction provides corrosion resistance and durability in fluid and pneumatic systems. Licensed plumbers, HVAC technicians, and refrigeration mechanics regularly use this type of fitting in copper and compatible soft-metal tubing installations.

This fitting is suited for residential and light commercial applications where 3/8-inch OD tubing must terminate at a 1/4-inch NPT threaded port. Common installation scenarios include water supply lines, refrigeration lines, pneumatic control circuits, and instrument tubing runs where a right-angle transition is needed and the installer requires rotational alignment flexibility during assembly. The compression-by-MNPT configuration eliminates the need for soldering or flaring at the tube end while threading directly into a standard NPT female port.

Key Features

• Swivel elbow design allows rotation during assembly to prevent tubing stress and simplify alignment
• Compression x MNPT end connections — no solder, flux, or flaring required at the tube end
• Brass construction resists corrosion in water, refrigerant-compatible, and pneumatic service
• 3/8-inch tube OD compression connection paired with 1/4-inch MNPT threaded port
• Compact elbow profile suited for tight spaces and right-angle routing

Compatibility

Designed as an OEM-style compression fitting for use with 3/8-inch OD tubing systems terminating at 1/4-inch NPT threaded ports in plumbing, HVAC, refrigeration, and pneumatic applications.

Installation Notes

Installation is typically performed by a licensed plumber, HVAC technician, or refrigeration mechanic. Shut off the water supply or depressurize the pneumatic or refrigerant circuit before disassembly or fitting installation. Hand-tighten the compression nut onto the tubing, then use a wrench for the additional turns specified by the compression fitting manufacturer — do not over-tighten, as this can crack the ferrule or distort the tubing. Apply thread sealant or PTFE tape to the MNPT threads per local plumbing code requirements before threading into the female NPT port.