ISO 6149-4:2017规定了用于ISO 6149？1端口的外部六角和内部六角端口插头的尺寸和性能要求。 本文件规定的端口塞可在高达63 MPa（630巴[1]）的工作压力下使用。允许工作压力取决于阀塞端部尺寸、材料、设计、工作条件、应用等。 符合本文件中的尺寸信息并不保证额定性能。各制造商应根据本文件中包含的规范进行测试，以确保部件符合性能额定值。 警告:使用符合本文件要求的螺柱端和符合ISO 1179、ISO 9974和ISO 11926相关部分的端口可能会导致危险情况。 [1] 1巴=0.1兆帕=105兆帕；1兆帕=1牛顿/平方毫米。

ISO 6149-4:2017 specifies dimensions and performance requirements for external hex and internal hex port plugs for use with ISO 6149？1 ports. Port plugs in accordance with this document can be used at working pressures up to 63 MPa (630 bar[1]). The permissible working pressure depends upon the plug end size, materials, design, working conditions, application, etc. Conformance to the dimensional information in this document does not guarantee rated performance. Each manufacturer is expected to perform testing according to the specification contained in this document to assure that components comply with the performance ratings. WARNING: The use of stud ends conforming to this document with ports conforming to the relevant parts of ISO 1179, ISO 9974 and ISO 11926 could lead to a hazardous situation. [1] 1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2.