MRC:
The length of a straight line which passes through the center of a circular figure or body,and terminates at the circumference.ABMZ
Diameter:
3.000 inches
MRC:
A measurement of the smallest dimension of an item,in distinction from length or width.ABNM
Thickness:
Between 0.500 inches and 0.650 inches
MRC:
An indication of whether or not a container from which the item is completely removable is provided.ALFK
Case:
Provided
MRC:
Indicates the design type of the item.APGF
Design Type:
Working double
MRC:
A measurement of the flatness accuracy of the working surface.BSFY
Working Surface Flatness Accuracy:
Between 0.00000100 inches and 0.00000400 inches
MRC:
The element,compound,or mixture of which an item is fabricated,excluding any surface treatment.MATL
Material:
Glass, borosilicate crown
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Glass, borosilicate crown