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National Stock Number:
6650-00-925-8421
Federal Supply Class:
6650
National Item Identification Number:
009258421
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:
| 10121198 | 09205 | LOCKHEED MARTIN CORP ELECTRONICS AND MISSILES DIV | | 10121198 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Techincal Specification:
| FSC APPLICATION DATA | ALIGNMENT SET,INFRARED,TRANSMITTER,GUIDED MISSILE REMOTE CONTROL SYSTEM | | INSCRIPTION COLOR | WHITE | | INSIDE DIAMETER | 1.626 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763, CLASS 303, COND A FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL COMP 303 | | MOUNTING CONFIGURATION | 3 SETSCREWS | | OVERALL HEIGHT | 0.343 INCHES NOMINAL | | OVERALL OUTSIDE DIAMETER | 1.812 INCHES NOMINAL | | SCALE DIVISION QUANTITY | 8 | | SCALE UNIT OF MEASURE INSCRIPTION | 4,3,2,1,MINUS SIGN/IN SYMBOL FORM,0,PLUS SIGN/IN SYMBOL FORM/,1,2,3,4 | | SURFACE TREATMENT | CHROMATE |
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