|
|
|
National Stock Number:
1240-00-302-1328
Federal Supply Class:
1240
National Item Identification Number:
003021328
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.
|
Manufacturer Information:
| 8200241 | 19200 | US ARMY ARDEC RDECOM |
|
Techincal Specification:
| INSCRIPTION COLOR | BLACK | | INSIDE DIAMETER | 1.151 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763, CLASS 303, COND A FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL COMP 303 | | MOUNTING CONFIGURATION | 5 SETSCREWS | | OVERALL HEIGHT | 0.780 INCHES NOMINAL | | OVERALL OUTSIDE DIAMETER | 1.838 INCHES NOMINAL | | SCALE DIVISION QUANTITY | 16 | | SCALE UNIT OF MEASURE INSCRIPTION | DEGREES PLUS 0 TO 8;MINUS 0 TO 8 | | SPECIAL FEATURES | ENGRAVE 17 LINES(16 SPACES) EQUALLY SPACED,AND AS SHOWN,IN 329 DEG 28 MIN 16 SEC BASIC.EACH LINE TO BE IN TRUE POSITION WITHIN 10 MIN OF ARC.NUMBERLINES AS SHOWN.LINES TO BE 0.015 IN. WIDE AND DEEP.NUMBERS,PLUS AND MINUS SIGNS,0.020 IN. WIDE AND 0.015 IN. DEEP;APPLY FINE MATTE FINISH |
|
|