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National Stock Number:
6650-00-885-0309
Federal Supply Class:
6650
National Item Identification Number:
008850309
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:
| 400-533933PC67 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | F591-63-71PC67 | 34228 | L3 TECHNOLOGIES, INC. | | F591-67 | 34228 | L3 TECHNOLOGIES, INC. |
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Techincal Specification:
| INSCRIPTION COLOR | WHITE | | INSIDE DIAMETER | 1.010 INCHES MINIMUM AND 1.013 INCHES MAXIMUM | | OVERALL HEIGHT | 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM | | OVERALL OUTSIDE DIAMETER | 1.125 INCHES NOMINAL | | MATERIAL | ALUMINUM | | MOUNTING CONFIGURATION | 1 SETSCREW | | SCALE DIVISION QUANTITY | 4 | | SCALE UNIT OF MEASURE INSCRIPTION | DEGREES 0 TO 1 PLUS,0 TO 3 MINUS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-E-15090, TYPE 3, CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE | | SURFACE TREATMENT | ENAMEL |
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