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National Stock Number:
1240-00-462-8645
Federal Supply Class:
1240
National Item Identification Number:
004628645
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:
| 8626447 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| FSC APPLICATION DATA | PERISCOPE,XM50 | | INSCRIPTION COLOR | BLACK | | INSIDE DIAMETER | 2.550 INCHES NOMINAL | | OVERALL HEIGHT | 0.525 INCHES NOMINAL | | OVERALL OUTSIDE DIAMETER | 2.906 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | WW-T-700/3, T3 FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 2024 | | MOUNTING CONFIGURATION | 3 SETSCREWS | | SCALE DIVISION QUANTITY | 12 | | SCALE UNIT OF MEASURE INSCRIPTION | DIOPTERS MINUS 3 TO 0 TO PLUS 3 | | SURFACE TREATMENT | ANODIZE |
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