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National Stock Number:
6650-00-803-2753
Federal Supply Class:
6650
National Item Identification Number:
008032753
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:
| 400-533880PC28 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 400-533901PC28 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| INSCRIPTION COLOR | WHITE | | INSIDE DIAMETER | 0.659 INCHES MINIMUM AND 0.660 INCHES MAXIMUM | | OVERALL HEIGHT | 0.182 INCHES MINIMUM AND 0.187 INCHES MAXIMUM | | OVERALL OUTSIDE DIAMETER | 0.750 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-325, T6-CANCELED FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 6061 | | MOUNTING CONFIGURATION | 1 SETSCREW | | SCALE DIVISION QUANTITY | 4 | | SCALE UNIT OF MEASURE INSCRIPTION | P0,M1,2,3, | | SPECIAL FEATURES | ENGRAVE ALL CHARACTERS 0.060 IN. H BY 0.005 IN. DEEP BY 0.010 IN. W |
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