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:
Cs-301, fscm 03938 mfr ref 1st material response and cs-301, fscm 03938 mfr ref 2nd material response and cs-301, fscm 03938 mfr ref 3rd material response or mil-c-6183, type 2, cl 2, grade c military specification 4th material response and mil-c-6183, type 2, cl 2, grade c military specification 5th material response