Optical Instrument Reticle

Features

Specifications

• Width:
  0.470 inches
• Length:
  Between 0.470 inches and 0.490 inches
• Axial Thickness:
  Between 0.057 inches and 0.062 inches
• Refraction Index:
  1.5230 and 1.5838
• Dispersion:
  58.6 angstroms and 46.0 angstroms
• Rim Finish:
  Ground
• Graduations/markings:
  Vertical hairline
• Supplementary Features:
  Material optical glass per mil-g-174, class 1, grade c, type 523-586 or 584-460
• Fsc Application Data:
  Aiming circle
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-503-9633