Optical Instrument Reticle

Features

Specifications

• Diameter:
  Between 0.6220 inches and 0.6240 inches
• Angle In Deg:
  45.0
• Scale Calibration:
  80 to 0 to 80 mils horizontal and vertical
• 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:
  Azimuth and elevation type
• Bevel Depth And Location:
  0.0100 inches both surfaces and 0.0200 inches both surfaces
• Style Designator:
  Graduated from center
• Supplementary Features:
  Material optical glass per mil-g-174, grade c, type 523-586 and type 584-460
• Fsc Application Data:
  Aiming circle, m1, antiaircraft fire control equipment
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-612-9648