Optical Instrument Reticle

Features

Specifications

• Diameter:
  Between 1.3750 inches and 1.3780 inches
• Angle In Deg:
  45.0 and 45.0
• Scale Calibration:
  200 to 2200 meter
• Axial Thickness:
  Between 0.137 inches and 0.157 inches
• Refraction Index:
  1.5230
• Dispersion:
  58.6 angstroms and 46.0 angstroms
• Rim Finish:
  Ground
• Graduations/markings:
  Range scale
• Ammunition Identification Inscription:
  155 mm he m470 ballistic designation
• Bevel Depth And Location:
  0.0200 inches both surfaces and 0.0300 inches both surfaces
• Style Designator:
  Vertically graduated
• Supplementary Features:
  Material optical glass per mil-g-174, grade c, type 523-586 or type 584-460
• Fsc Application Data:
  Telescope, elbow
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-779-7294