Optical Instrument Reticle

Features

Specifications

• Width:
  1.625 inches
• Length:
  1.906 inches
• Angle In Deg:
  35.0 and 55.0
• Scale Calibration:
  10-0-10 deg
• Axial Thickness:
  0.120 inches
• Refraction Index:
  Between 1.5150 and 1.5250
• Dispersion:
  Between 50.0 angstroms and 70.0 angstroms
• Rim Finish:
  Felt polished
• Graduations/markings:
  Grid type
• Style Designator:
  Horizontally graduated from center
• Supplementary Features:
  Material optical glass per mil-g-174, class 1, grade a
• Fsc Application Data:
  Viewfinder, aerial mapping and reconnaissance fmly type 2
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-253-4596