Optical Instrument Lens

Features

Specifications

• Width:
  Between 16.4 millimeters and 16.6 millimeters
• Diameter:
  Between 107.0 millimeters and 108.0 millimeters
• Axial Thickness:
  12.3 millimeters
• Equivalent Focal Length:
  686.000 centimeters
• Back Focal Length:
  683.880 centimeters
• Front Focal Length:
  677.440 centimeters
• Refraction Index:
  1.5170
• Single Lens Style:
  Plano-convex
• Material:
  Glass, optical, mil-g-174, grade b, type bsc 517-645
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-01-096-4292