Optical Instrument Lens

Features

Specifications

• Diameter:
  5.440 inches
• Axial Thickness:
  0.270 inches
• Single Lens Style:
  Meniscus converging
• Material:
  Glass, optical
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-01-062-3117
• Special Features:
  Material used in the manufacture of this optical part shall not containthorium, other radioactive material, or any combination of nuclear materials in excess of 0.05 percent by weight as defined by the title 10, code of federal regulations, part 40.The infrared antireflective coating is excluded from this restriction and contains thorium approximately .0011 grams per square centimeter of coated surface