Intended Application

Due to the MS21042 nut's thin wall and reduced thread height, it should not be used in critical applications. In fact, self-locking nuts such as the MS21042 series are subject to the limitations of use found in MS33588. It states that self-locking nuts shall not be used as follows:

The entire text of MS33588E can be found below (since replaced by NASM33588):

MS33588E

The prints found here within are not to be used for the manufacturer, procurement, or use of MS21042 hardware. They are for educational proposes only. The most current revision can be found on IHS Global , and are the property of the AIA.