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National Stock Number:
1240-00-763-9252
Federal Supply Class:
1240
National Item Identification Number:
007639252
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:
| 7639252 | 19200 | US ARMY ARDEC RDECOM | | 7639252 | 65534 | ALEK INDUSTRIES INC |
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Techincal Specification:
| FSC APPLICATION DATA | PERISCOPE,M15A1,INTEGRATED WITHFIRE CONTROL EQUIPMENT | | INSCRIPTION COLOR | WHITE | | INSIDE DIAMETER | 1.587 INCHES NOMINAL | | OVERALL HEIGHT | 0.410 INCHES NOMINAL | | OVERALL OUTSIDE DIAMETER | 1.965 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-354, COND T-CANCELED FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 2024 | | MOUNTING CONFIGURATION | INTERNALLY THD RING | | SCALE DIVISION QUANTITY | 5 | | SCALE UNIT OF MEASURE INSCRIPTION | 2,MINUS SIGN/IN SYMBOL FORM/,0,PLUS SIGN/IN SYMBOL FORM/,2 | | SURFACE TREATMENT | ANODIZE |
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