Features
Glass optical material.
Special design.
Includes quality control certificate of conformance.
Specifications
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Diameter:
18.0 millimeters
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End Application:
Rangefinder mk51
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Axial Thickness:
3.0 millimeters
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Refraction Index:
1.5838
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Dispersion:
46.0 angstroms
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Rim Finish:
Ground
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Graduations/markings:
Semigrid type
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Bevel Depth And Location:
0.3 millimeters both surfaces
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Style Designator:
Special design
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Federal Supply Class (fsc):
Optical instruments, test equipment, components and accessories
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National Stock Number (nsn):
6650-00-155-2878