Optical Instrument Reticle

Features

Specifications

• Diameter:
  Between 1.2470 inches and 1.2500 inches
• Angle In Deg:
  45.0
• Scale Calibration:
  90 to 0 to 90 mils
• Axial Thickness:
  Between 0.105 inches and 0.125 inches
• Refraction Index:
  1.5230 and 1.5838
• Dispersion:
  58.6 angstroms and 46.0 angstroms
• Rim Finish:
  Ground
• Graduations/markings:
  Cross line
• Bevel Depth And Location:
  0.0200 inches both surfaces and 0.0300 inches both surfaces
• Style Designator:
  Modified crossline
• Supplementary Features:
  Material optical glass per mil-g-174, grade c, type 523-586 and type 584-460
• Fsc Application Data:
  Telescope, panoramic
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-918-4156