Optical Instrument Reticle

Features

Specifications

• Diameter:
  1.3740 inches
• Angle In Deg:
  45.0
• Axial Thickness:
  0.140 inches
• Refraction Index:
  1.5838
• Dispersion:
  46.0 angstroms
• Rim Finish:
  Ground
• Graduations/markings:
  Range scale
• Style Designator:
  Vertically graduated
• Supplementary Features:
  Material optical glass per jan-g-174, grade c
• Fsc Application Data:
  Periscope m15, integrated with fire control
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-767-5690
• Special Features:
  0.0200 in. Bevel depth