MRC:
A measurement from the bottom to the top of a cross section,in distinction from depth.ADVN
Cross-sectional Height:
Between 0.269 inches and 0.281 inches
MRC:
The length of a straight line which passes through the center of the center hole,and terminates at the circumference.ADYT
Center Hole Diameter:
Between 6.452 inches and 6.498 inches
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Rubber chloroprene class cr
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-21399 and material conforming to ships parts control center special quality control provisions