本航空航天信息报告（AIR）旨在为航空航天推进行业提供螺纹紧固件的建议装配扭矩限值，前提是每个紧固件尺寸的通用扭矩值是目标值。（紧固件基于MA1518中的尺寸数据）。它还提供了一系列曲线，显示了当施加推荐扭矩时，摩擦系数对紧固件中产生的轴向载荷的影响。

The purpose of this Aerospace Information Report (AIR) is to provide the aerospace propulsion industry with recommended assembly torque limits for threaded fasteners when a common torque value per fastener size is the objective. (The fasteners are based on the dimensional data in MA1518). It also provides a series of curves that show the effect of the coefficient of friction on the axial load produced in a fastener, when the recommended torques are applied.