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National Stock Number:
6650-01-246-0213
Federal Supply Class:
6650
National Item Identification Number:
012460213
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.
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Manufacturer Information:
| RT-3 | 5S434 | DUFFENS OPTICAL INC |
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Techincal Specification:
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCALE DIOPTER USED W/SLIT LIGHT MDL SL-63 NSN 6540011823770 | | SPECIAL FEATURES | USED WITH SLIT LIGHT,MDL. SL-63; NSN 6540-01-182-3770 |
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