本国际标准规定了航空航天结构中使用的MJ螺纹公制普通或开槽（槽形）螺母的试验方法。它描述了每个测试的测试设备和方法。 本标准适用于上述螺母，前提是相关文件（产品标准、定义文件、采购规范等）参考本国际标准。 本国际标准将与ISO 9139或任何其他类似文件一起使用。

This International Standard specifies test methods for metric plain or slotted (castellated) nuts, with MJ threads in accordance with ISO 5855-2, for use in aerospace construction. It describes the test device and the method for each test. It is applicable to nuts as defined above, provided that the relevant documents (product standard, definition document, procurement specification, etc.) refer to this International Standard. This International Standard is to be used in conjunction with ISO 9139 or any other similar document.