Features
type 517-642 grade b mil-g-174 optical glass material.
Includes quality control certificate of conformance.
Specifications
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Diameter:
3.300 inches
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Axial Thickness:
0.342 inches
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Single Lens Style:
Meniscus diverging
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Material:
Glass, optical, mil-g-174, grade b, type 517-642
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Fsc Application Data:
Night vision equipment, emitted and reflected radiation
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Federal Supply Class (fsc):
Night vision equipment, emitted and reflected radiation
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National Stock Number (nsn):
5855-01-135-9664