Optical Instrument Lens

Features

Specifications

• Diameter:
  0.834 inches
• End Application:
  M110 howitzer family
• Axial Thickness:
  0.167 inches
• Equivalent Focal Length:
  1.757 inches
• Back Focal Length:
  1.774 inches
• Refraction Index:
  1.6109
• Abbe Constant:
  57.200
• Single Lens Style:
  Plano-convex
• Element Left Surface Radius:
  6.532 inches
• Element Right Surface Radius:
  0.931 inches
• Material:
  Glass, optical, mil-g-174, class 1, grade c
• Material Specification:
  Mil-g-174, class 1, grade c military specification single material response
• Fsc Application Data:
  Telescope, panoramic, integrated with fire control equipment
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-00-848-9892
• Special Features:
  Magnesium fluoride coating left and right surfaces