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-200/4, specification 5083-h111 federal specification 1st material response or qq-a-200/5, specification 5086-h111 federal specification 2nd material response or qq-a-250/6, specification 5083-h321 federal specification 3rd material response or qq-a-250/7, specification 5086-h32 federal specification 4th material response or ww-t-700/4, specification 5052-h32 federal specification 5th material response