Features
Glass borosilicate material.
Crossline.
Includes quality control certificate of conformance.
Specifications
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Diameter:
26.5 millimeters
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End Application:
Telescope mk90
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Axial Thickness:
1.7 millimeters
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Refraction Index:
1.5230
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Dispersion:
58.6 angstroms
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Rim Finish:
Ground
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Graduations/markings:
Cross line
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Style Designator:
Crossline
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Federal Supply Class (fsc):
Optical instruments, test equipment, components and accessories
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National Stock Number (nsn):
6650-00-157-3854