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National Stock Number:
1240-00-213-7026
Federal Supply Class:
1240
National Item Identification Number:
002137026
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:
| 11737314 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| FSC APPLICATION DATA | RECEIVER-TRANSMITTER,LASER | | INSCRIPTION COLOR | BLACK | | INSIDE DIAMETER | 2.538 INCHES MINIMUM AND 2.542 INCHES MAXIMUM | | OVERALL HEIGHT | 0.950 INCHES MINIMUM AND 0.970 INCHES MAXIMUM | | OVERALL OUTSIDE DIAMETER | 2.840 INCHES MINIMUM AND 2.850 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643, 17-4PH ASSN STD SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL COMP 630 | | MOUNTING CONFIGURATION | THREE SETSCREWS 0.138 IN.-32UNC-2A | | SCALE DIVISION QUANTITY | 6 | | SCALE UNIT OF MEASURE INSCRIPTION | IOPTERS,MINUS 3 TO PLUS 3 | | SPECIAL FEATURES | EIGHT CONCAVE SECTIONS ON PERIPHERY,0.500 IN. RADIUS BY CENTERED 0.235 AND 0.435 IN. FROM LARGER DIAMETER END | | SURFACE TREATMENT | PASSIVATE |
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