Optical Instrument Lens

Features

Specifications

• Diameter:
  0.709 inches
• Axial Thickness:
  0.325 inches
• Equivalent Focal Length:
  0.710 inches
• Back Focal Length:
  0.500 inches
• Refraction Index:
  1.5220
• Abbe Constant:
  59.500
• Single Lens Style:
  Plano-convex
• Material:
  Glass, optical, mil-g-174, class 1, grade a and glass, optical, mil-g-174
• Material Specification:
  Mil-g-174, class 1, grade a military specification 1st material response and mil-g-174 military specification 2nd material response
• Radioactive Content:
  Contains radioactive material
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-01-080-7987
• Special Features:
  Coated per mil-c-675; optional matl glass sw18 chance pilkington radioactive matl nte 500 ppm by weight; 0.630 in. Clear aperture