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-250/5, temper t3 federal specification single material response or qq-a-250/5, temper t4 federal specification single material response or qq-a-250/4, temper t3 federal specification single material response or qq-a-250/4, temper t4 federal specification single material response or qq-a-225/6, temper t4 federal specification single material response or ww-t-700/3, temper t3, type 1 federal specification single material response