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AIR1551A - Torque Tightening Metric Screw Threaded Fasteners

Document Number: AIR1551A
Revision Number: A
Torque Tightening Metric Screw Threaded Fasteners
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.
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