Answer
Jan 07, 2025 - 07:33 AM
AN fittings, commonly used in automotive and aerospace applications, are sized using a system that corresponds to the outside diameter of the tubing they connect to, measured in sixteenths of an inch. For example, an AN-4 fitting is designed for tubing with an outside diameter of 4/16 inches, or 1/4 inch. These fittings are available in various sizes, typically ranging from AN-2 to AN-32, to accommodate different tubing diameters and application needs.
