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National Stock Number:
1240-01-292-0970
Federal Supply Class:
1240
National Item Identification Number:
012920970
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:
| 8270282 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| INSCRIPTION COLOR | BLACK | | INSIDE DIAMETER | 0.500 INCHES NOMINAL | | OVERALL HEIGHT | 0.953 INCHES NOMINAL | | OVERALL OUTSIDE DIAMETER | 1.406 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-200/3, ALLOY 2024, T4 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-200/8, 6061, T6 FED SPEC 2ND MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 6061 | | MOUNTING CONFIGURATION | PRESS FIT | | SCALE DIVISION QUANTITY | 100 | | SCALE UNIT OF MEASURE INSCRIPTION | DEGREES 0 TO 90 |
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