Features
Glass optical material.
Includes quality control certificate of conformance.
Specifications
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Diameter:
3.250 inches
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Axial Thickness:
0.361 inches
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Single Lens Style:
Double concave
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Element Left Surface Radius:
38.460 inches
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Element Right Surface Radius:
7.212 inches
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Material:
Glass, optical, mil-g-174, class 1, grade a
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Material Specification:
Mil-g-174, class 1, grade a military specification single material response
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Federal Supply Class (fsc):
Optical instruments, test equipment, components and accessories
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National Stock Number (nsn):
6650-01-245-9781