本部分定义了用于SAE J1926-1端口的−2至−32内部和外部六角端口插头的性能要求、尺寸和设计。多年的测试和使用证实了由碳钢制成的端口插头的性能要求。端口插头在SAE J514中有规定，没有任何性能要求。它们经过开发和测试，可在工业应用中获得4:1的工作压力等级。 在流体动力系统中，动力通过封闭回路内的压力下的流体（液体或气体）来传输和控制。在一般应用中，流体可以在压力下输送。部件通过其螺纹端口通过流体导体配件上的螺柱端连接到管和管道或软管接头和软管。 对于液压流体动力应用中新设计中规定的螺纹端口和螺柱端，只能使用ISO 6149。符合ISO 1179、ISO 9974和ISO 11926的螺纹端口和螺柱端部不得用于液压流体动力应用的新设计中。 符合SAE J1926本部分的尺寸信息并不能保证额定性能。每个制造商应根据SAE J1926本部分中包含的规范进行测试，以确保组件符合性能等级。

This part defines performance requirements, dimensions, and designs for −2 through −32 internal and external hex port plugs for use in SAE J1926-1 ports. Testing and usage through many years confirm the performance requirements of port plugs made from carbon steel. The port plugs were specified in SAE J514 without any performance requirements. They have been developed and tested to gain a 4:1 working pressure rating for industrial applications. In fluid power systems, power is transmitted and controlled through a fluid (liquid or gas) under pressure within an enclosed circuit. In general applications, a fluid may be conveyed under pressure. Components are connected through their threaded ports by stud ends on fluid conductor fittings to tubes and pipes or to hose fittings and hoses. For threaded ports and stud ends specified in new designs in hydraulic fluid power applications, only ISO 6149 shall be used. Threaded ports and stud ends in accordance with ISO 1179, ISO 9974, and ISO 11926 are not to be used in new designs in hydraulic fluid power applications. Conformance to the dimensional information in this part of SAE J1926 does not guarantee rated performance. Each manufacturer should perform testing according to the specification contained in this part of SAE J1926 to assure that components comply with the performance ratings.