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The purpose of this paper is to review the development of SAE J2244 by the SAE Fluid Conductors and Connector Technical Committee and to review the changes made to ISO 6149:1980 by the ISO Subcommittee to address the deficiencies which have prevented ISO 6149 from becoming “the International Port” for hydraulic fluid power applications. Because the needs of the global market-place have now been incorporated into SAE J2244 (ISO 6149), a basis will be established for making SAE J2244 (ISO 6149) the preferred port for the 90's, and thus: THE WORLD CLASS PORT & STUD ENDS FOR HIGH PRESSURE HYDRAULICS. SAE J2244 was developed in parallel with the revision of ISO 6149:1980 to provide U.S. users an industry standard for metric, straight thread ports and stud ends. SAE J2244 incorporates the extensive changes made to ISO 6149:1980 to complete its design. Heavy-duty and light-duty stud end dimensions, working pressures, burst pressures, and assembly torques have been developed.