Parker 270AB-6-4 Compression Female Elbow 3/8 Od Brass

Product Description

The PARKER 270AB-6-4 is a brass compression tube female elbow fitting designed to connect a 3/8-inch OD compression tube to a 1/4-18 NPTF female pipe thread. The 90-degree elbow configuration allows a direction change in tubing runs where space or routing constraints require it. Rated to 400 psi maximum working pressure, this fitting handles a temperature range of -65 degrees F to 250 degrees F, making it suitable for a wide range of fluid and air line applications. It meets D.O.T. FMVSS571.106 and SAE J246 standards. Licensed plumbers, HVAC technicians, and fluid power mechanics are the primary installers of this type of fitting.

This fitting is used in pneumatic, hydraulic, refrigeration, and fluid transfer systems where a compression tube must transition to a threaded female port at a right angle. Common install scenarios include instrument tubing connections, OEM equipment plumbing, vehicle brake and air systems covered under D.O.T. requirements, and industrial fluid lines. The NPTF thread standard provides a pressure-tight mechanical seal without relying solely on sealant.

Key Features

• Brass construction for corrosion resistance in air, water, and compatible fluid service
• Compression x FNPT end connections allow a tool-assisted, leak-resistant tube-to-pipe joint
• 400 psi maximum working pressure for demanding pneumatic and hydraulic runs
• Wide service temperature range: -65 degrees F to 250 degrees F
• Meets D.O.T. FMVSS571.106 and SAE J246 for use in regulated vehicle and industrial systems
• NPTF thread standard provides mechanical pressure-tight engagement

Compatibility

Designed for use with 3/8-inch OD compression tubing and 1/4-18 NPTF female threaded ports in pneumatic, hydraulic, and fluid transfer systems meeting D.O.T. and SAE J246 application requirements.

Installation Notes

This fitting is installed by licensed plumbers, HVAC technicians, or fluid power mechanics depending on the system. Depressurize and drain the line fully before removing or installing any compression fitting. Compression fittings require proper tube squareness and deburring for a leak-free seat — do not overtighten, as brass compression seats can be damaged. Confirm thread compatibility and sealant requirements per the applicable system code before installation.