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National Stock Number:
1240-00-973-1411
Federal Supply Class:
1240
National Item Identification Number:
009731411
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:
| 8566978 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| FSC APPLICATION DATA | PERISCOPE,M32,M35,AND M36,INTEGRATED WITH FIRE CONTROL EQUIPMENT | | INSCRIPTION COLOR | BLACK | | INSIDE DIAMETER | 1.750 INCHES MINIMUM AND 1.755 INCHES MAXIMUM | | OVERALL HEIGHT | 0.354 INCHES MINIMUM AND 0.364 INCHES MAXIMUM | | OVERALL OUTSIDE DIAMETER | 2.370 INCHES MINIMUM AND 2.375 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-200/3, ALLOY 2024, T4 FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 2024 | | MOUNTING CONFIGURATION | 3 SETSCREWS | | SCALE DIVISION QUANTITY | 7 | | SCALE UNIT OF MEASURE INSCRIPTION | 3,2,1,MINUS SIGN/IN SYMBOL FO RM/,0,PLUS SIGN/IN SYMBOL FORM/,1,2,3 | | SURFACE TREATMENT | ANODIZE |
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