Features
type 517-645 grade b mil-g-174 optical glass material.
Porro.
Includes quality control certificate of conformance.
Specifications
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Light Deviation:
90 deg
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Material:
Glass, optical, mil-g-174, grade b, type 517-645
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Style Designator:
Porro
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Fsc Application Data:
Periscope, battery command
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Federal Supply Class (fsc):
Optical instruments, test equipment, components and accessories
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National Stock Number (nsn):
6650-00-618-1117
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Special Features:
Erecting system style, c/o porro and 90 degrees prisms bonded. Right erecting system