Optical Instrument Lens

Features

Specifications

• Diameter:
  3.350 inches
• Axial Thickness:
  0.780 inches
• Single Lens Style:
  Plano-convex
• Material:
  Glass, optical, mil-g-174, class 1, grade b, type 691-547
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-01-062-3128
• Special Features:
  2material used in the manufacture of this optical part shall not containthorium, other radioactive material, or any combination of nuclear material inexcess of 0.05 percent by weight as defined by the title 10, code of federal regulations, part 40