Features
grade b class 1 mil-g-174 optical glass material.
Includes quality control certificate of conformance.
Specifications
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Width:
0.338 inches
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Diameter:
3.420 inches
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Axial Thickness:
0.125 inches
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Refraction Index:
1.7550
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Abbe Constant:
27.600
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Single Lens Style:
Double concave
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Material:
Glass, optical, mil-g-174, class 1, grade b
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Federal Supply Class (fsc):
Optical instruments, test equipment, components and accessories
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National Stock Number (nsn):
6650-01-070-3257
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Special Features:
Left side beveled to 3.1 in. Diameter over 0.238 in.; edges blackened with lacquer; magnesium flouride coating