Describe the MIL-STD-1312 (NAS) test ? Name three generic ways to prevent or at least minimize self-loosening ? Define prevailing torque ? A proper length-to-diameter ratio for the bolt can reduce or eliminate self-loosening. What L/D ratios have been recommended? Give the trade names of at least two special thread forms which have been designed to combat self-loosening ? What is an anaerobic adhesive? How does a stack of Belleville washers fight self-loosening?