ISO 6149-3:1993 用于流体传动和一般用途的管接头 带ISO 261螺纹和O形圈密封的油口和螺纹端头 第3部分:轻型(L系列)螺柱端头 尺寸、型式、试验方法和技术要求
Connections for fluid power and general use; ports and stud ends with ISO 261 threads and O-ring sealing; part 3: light duty (L series) stud ends; dimensions, design, test methods and requirements