MRC:
A numeric value that reflects the hardness of a nonmetallic item when used in conjunction with a hardness rating scale.AASF
Nonmetallic Hardness Rating:
70.0 shore durometer a
MRC:
A measurement of the cross section taken at right angles to the length,in distinction from thickness.ADWH
Cross-sectional Width:
0.312 inches
MRC:
The element,compound,or mixture of which an item is fabricated,excluding any surface treatment.MATL
Material:
Rubber, mil-r-1149, type 1, class 3-canceled
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Rubber isobutylene-isoprene class iir
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-1149, type 1, class 3-canceled military specification single material response
