National Stock Number: 6650-00-767-5652
  Federal Supply Class: 6650
  National Item Identification Number: 007675652
  Description: EYEPIECE ASSEMBLY,OPTICAL INSTRU
  Detail: AN OPTICAL SYSTEM CONSISTING OF TWO OR MORE LENSES SECURED WITHIN A CYLINDRICAL SLEEVE. IT IS THE COMPONENT OF AN OPTICAL INSTRUMENT NEAREST THE EYE OF THE OBSERVER WHEN SIGHTING. THE DISTANCE BETWEEN LENSES IS MAINTAINED BY AN OPTICAL ELEMENT SPACER. IT USUALLY HAS FOCUSING FACILITIES AND MAY INCLUDE A RETICLE, FILTER, AND/OR DIOPTER SCALE.
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