Optical Instrument Reticle

Features

Specifications

• Diameter:
  1.5355 inches
• Angle In Deg:
  45.0
• Axial Thickness:
  0.2756 inches
• Refraction Index:
  1.5771
• Dispersion:
  64.3 angstroms
• Rim Finish:
  Ground
• Graduations/markings:
  Elevation type
• Convex Surface Radius:
  1.9701 inches
• Style Designator:
  Vertically graduated
• Supplementary Features:
  Material optical glass per jan-g-174, grade c, type 523-586 and 584-460
• Fsc Application Data:
  Telescopes mk 67, 68 integral with fire control
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-026-8109
• Special Features:
  0.0197 in. Bevel depth