Optical Instrument Window

Features

Specifications

• Width:
  4.807 inches
• Thickness:
  Between 0.321 inches and 0.329 inches
• Length:
  6.474 inches
• End Application:
  An/aaq-13 lantirn navigation pod
• Polished Periphery:
  Not provided
• Criticality Code Justification:
  Radc
• Material:
  Selenium and zinc
• Radioactive Content:
  Contains radioactive material
• Fsc Application Data:
  Optical sighting and ranging equipment-fire control
• Federal Supply Class (fsc):
  Optical instruments, test equipment, components and accessories
• National Stock Number (nsn):
  6650-01-250-8211
• Special Features:
  Hazardous material: window has an anti-reflective coating containing .5043 grams of thorium tetrafluoride. The total amount of thorium 232 in the coating is .3802 grams, the resultant activity of a single window is 4.18 x 10 to the minus 8 power curies