MRC:
The style designation indicating the configuration that most nearly corresponds to the cross-sectional shape of the item.AAGR
Cross Sectional Shape:
Rectangular
MRC:
The length of a straight line which passes through the center of a hole,and terminates at the circumference.AAUB
Hole Diameter:
Between 1.590 inches and 1.610 inches
MRC:
The style designation indicating the configuration that most nearly corresponds to the peripheral shape of the item.ABMW
Edge Shape:
Round
MRC:
The style designation indicating the configuration that most nearly corresponds to the shape of the center hole.ABMX
Center Hole Shape:
1 round
MRC:
A measurement of the smallest dimension of an item,in distinction from length or width.ABNM
Thickness:
Between 0.104 inches and 0.136 inches
MRC:
A measurement of the longest straight line across a circular cross-sectional plane.ADAV
Overall Diameter:
Between 2.190 inches and 2.220 inches
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Rubber fluorosilicone class fq
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-25988, type 2, class 1 grade 40 military specification single material response