Parker 179HD-6-4 Brass Compression Male 45 Elbow 1/4 in

Product Description

The PARKER 179HD-6-4 is a brass male 45-degree elbow fitting designed for compression-to-MNPT connections in fluid and pneumatic systems. It transitions a compression tube connection on one end to a 1/4-inch male NPT thread on the other, at a 45-degree angle to simplify routing in tight or angled installations. Rated to 1500 psi maximum working pressure, this fitting handles demanding service conditions found in hydraulic, refrigeration, and instrumentation lines. Its all-brass construction resists corrosion and provides reliable sealing. HVAC technicians, plumbers, and industrial pipe fitters are the primary installers of this type of fitting.

This fitting is suited for residential and light commercial applications where a compression tube line must transition to a male NPT port at an angle. Typical uses include instrument tubing, refrigerant line fittings, fuel lines, and hydraulic control circuits where straight-line routing is not possible. The 45-degree angle reduces stress on tubing by providing a smoother directional change compared to a 90-degree elbow. It is sold individually and is appropriate for use wherever a 1/4-inch MNPT port and matching compression tube size are present.

Key Features

• Brass construction for corrosion resistance and long service life
• 1,500 psi maximum working pressure for demanding fluid and pneumatic service
• 45-degree elbow geometry for angled tube routing in confined spaces
• Compression x MNPT end connections for tool-free tube attachment on the compression side
• 1/4-inch thread size conforming to MPT standard

Compatibility

Designed as an OEM-style replacement or new-installation fitting for systems requiring a compression-to-male NPT transition at a 45-degree angle with a 1/4-inch MNPT thread.

Installation Notes

Installation should be performed by a licensed plumber, HVAC technician, or qualified pipe fitter. Depressurize and isolate the line before disassembly or installation. Apply thread sealant or PTFE tape to the male NPT threads in accordance with local plumbing and mechanical codes. Do not overtighten the compression nut, as this can deform the ferrule and compromise the seal.