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National Stock Number:
1240-01-079-3002
Federal Supply Class:
1240
National Item Identification Number:
010793002
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:
| 12279031 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| INSCRIPTION COLOR | NATURAL METALLIC | | OVERALL HEIGHT | 0.012 INCHES NOMINAL | | OVERALL OUTSIDE DIAMETER | 0.660 INCHES NOMINAL | | MATERIAL | ALUMINUM | | MOUNTING CONFIGURATION | PRESSURE SENSITIVE ADHESIVE BACKING | | SCALE DIVISION QUANTITY | 33 | | SCALE UNIT OF MEASURE INSCRIPTION | -2 TO 6 | | SPECIAL FEATURES | EAA IS PERISCOPE,TANK; NSN 1240-01-076-6747; MATERIAL IS PER QQ-A-250/1,1100-H14; SURFACE TREATMENT INCLUDES PHOTOSENSITIZING PER GG-P-455,TYPE I,GRADE A,CLASS 1,SATIN FINISH; ANODIZE IS CLEAR; ITEM IS FLAT; ADHESIVE BACKING IS 0.002 IN. THK.,NO. 4 ADHESIVE PERMIL-P-19834,TYPE 1 | | SURFACE TREATMENT | ANODIZE |
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