MRC:
The master requirement codes of those requirements which are technically critical by reason of tolerance,fit,performance,or other characteristics which affect identification of the item.CRTL
Criticality Code Justification:
Zzzy
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Rubber butadiene-acrylonitrile class nbr or rubber butadiene-styrene class sbr or rubber chloroprene class cr
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-r-6855 military specification all material responses
MRC:
A feature of the item of supply which must be specifically recorded when the reference number covers a range of items.ZZZY
Reference Number Differentiating Characteristics:
As differentiated by packaging in accordance with mil-p-23199 and material conforming to ships parts control center special quality control provisions