Features
type 517-645 grade b class 1 mil-g-174 optical glass material.
Includes quality control certificate of conformance.
Specifications
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Diameter:
1.250 inches
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Axial Thickness:
Between 0.098 inches and 0.102 inches
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Individual Lens Style:
Meniscus converging
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Material:
Glass, optical, mil-g-174, class 1, grade b, type 517-645
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Supplementary Features:
One coat of yellow edge marking
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Federal Supply Class (fsc):
Night vision equipment, emitted and reflected radiation
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National Stock Number (nsn):
5855-00-087-1548
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Special Features:
Edge blackening