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:
Mil-t-6736, comp 4130, type 1, cond n military specification single material response
MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.STDC
Surface Treatment Specification:
H+4-11, type 2, class 1, hughes tool co, aircraft div mfr ref single treatment response