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-591 federal specification single material response handlemil-s-6758 military specification single material response shank or mil-t-6736 military specification single material response shankqq-s-763 federal specification single material response detentmil-s-6758 military specification single material response spindleqq-a-351 federal specification single material response buttonqq-s-633 federal specification single material response ringqq-w-470 federal specification single material response spring
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:
Mil-a-8625 black military specification single treatment response handleqq-p-416, type 1, class 3 federal specification single treatment response shankmil-s-5002 military specification single treatment response detentqq-p-416, type 1, class 3 federal specification single treatment response spindlemil-a-8625 gold military specification single treatment response buttonqq-p-416, type 1, class 3 federal specification single treatment response ringqq-p-416, type 1, class 3 federal specification single treatment response spring