Features
type 620-603 grade b class 1 mil-g-174 optical glass material.
Includes quality control certificate of conformance.
Specifications
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Diameter:
Between 1.754 inches and 1.758 inches
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Axial Thickness:
Between 0.296 inches and 0.304 inches
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Equivalent Focal Length:
2.500 inches
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Back Focal Length:
2.451 inches
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Front Focal Length:
2.362 inches
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Single Lens Style:
Double convex
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Element Left Surface Radius:
5.861 inches
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Element Right Surface Radius:
2.084 inches
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Material:
Glass, optical, mil-g-174, class 1, grade b, type 620-603
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Federal Supply Class (fsc):
Optical instruments, test equipment, components and accessories
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National Stock Number (nsn):
6650-01-073-1722