Features
Glass optical material.
Crossline w/grid.
Includes quality control certificate of conformance.
Specifications
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Diameter:
Between 0.8260 inches and 0.8290 inches
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Angle In Deg:
45.0
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Scale Calibration:
200 to 2200 meters
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Axial Thickness:
Between 0.100 inches and 0.120 inches
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Refraction Index:
1.5230 and 1.5838
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Dispersion:
58.6 angstroms and 46.0 angstroms
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Rim Finish:
Ground
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Graduations/markings:
Range scale
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Bevel Depth And Location:
0.0100 inches both surfaces and 0.0150 inches both surfaces
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Style Designator:
Crossline w/grid
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Supplementary Features:
Material optical glass per jan-g-174, grade c, type 523-586 and type 584-460
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Fsc Application Data:
Telescope, panoramic
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Federal Supply Class (fsc):
Optical instruments, test equipment, components and accessories
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National Stock Number (nsn):
6650-00-918-4105
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Special Features:
Second scale calibration 40 to 0 to 40 mils