MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.MDCL
Material Specification:
Qq-a-225/9, temper t73 federal specification single material response or qq-a-225/9, temper t7351 federal specification single material response or qq-a-200/11, temper t73 federal specification single material response or qq-a-200/11, temper t73510 federal specification single material response or qq-a-200/11, temper t73511 federal specification single material response