5305-00-896-6757 SCREW Index 5342-00-896-6759 CLIP,OPTICAL

National Stock Number:
6650-00-896-6758

Federal Supply Class:
6650

National Item Identification Number:
008966758

Description:
SCALE,DIOPTER

Detail:
A GRADUATED SCALE, USUALLY CYLINDRICAL IN SHAPE, ATTACHED TO, OR FORMING A PART OF, THE FOCUSING NUT OR KNOB OF THE EYEPIECE OF AN OPTICAL INSTRUMENT. IT IS READ IN CONJUNCTION WITH A LINE OR DART INDICATOR TO MEASURE THE CHANGE IN REFRACTING POWER OF THE EYEPIECE, IN DIOPTERS, AND INTRODUCES CORRECTION TO COMPENSATE FOR THE EYESIGHT VARIATION OF THE OBSERVER. IT MAY HAVE A KNURLED PERIPHERY AND/OR TEETH ON THE INSIDE DIAMETER.


Manufacturer Information:
547A00303203956NORTHROP GRUMMAN SYSTEMS CORPORATION
547A00303234228L3 TECHNOLOGIES, INC.
A-547.59134228L3 TECHNOLOGIES, INC.
A-547.5914N133CHATHAM PRECISION INC


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