Optical Instrument Reticle

Features

Specifications

• Diameter:
  Between 1.0730 inches and 1.0760 inches
• Angle In Deg:
  45.0
• End Application:
  M116 telescope
• Scale Calibration:
  800 to 2400 meters
• Axial Thickness:
  Between 0.100 inches and 0.120 inches
• Refraction Index:
  1.5230 and 1.5838
• Dispersion:
  58.6 angstroms and 46.0 angstroms
• Rim Finish:
  Ground
• Graduations/markings:
  Range scale
• Ammunition Identification Inscription:
  175mm gun-he-m437, charge 3
• 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
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-898-6788
• Special Features:
  Etched lines filled with sodium silicate and titanium dioxide