Optical Instrument Lens

Features

Specifications

• Diameter:
  Between 3.418 inches and 3.420 inches
• Length:
  Between 0.609 inches and 0.613 inches
• Axial Thickness:
  Between 0.487 inches and 0.491 inches
• Equivalent Focal Length:
  11.533 inches
• Back Focal Length:
  0.279 inches
• Single Lens Style:
  Meniscus converging
• Material:
  Glass, optical, mil-g-174, class 1, grade b
• Fsc Application Data:
  Telescope, receiver c877
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-01-099-8618