scope:

This Standard covers only cylindrical couplers where interchange between makes is recommended.

This Standard does not preclude other types of hydraulic couplers used for similar purposes.

Purpose

The purpose of this Standard is to establish interface dimensions of cylindrical hydraulic couplers frequently used by the equipment industry to connect hydraulic remote cylinders and other hydraulic devices to lawn and garden tractors.

The purpose of this Standard is also to permit interchangeable use of remote cylinders and other hydraulic devices on different makes of tractors when designed for this use.