1240-01-459-8574 RING,ERECTOR DIAPHRAGM Index 1240-01-459-8576 CELL,OPTICAL ELEMENT

National Stock Number:
6650-01-459-8575

Federal Supply Class:
6650

National Item Identification Number:
014598575

Description:
SPACER,OPTICAL ELEMENT

Detail:
A TUBULAR SHAPED ITEM DESIGNED TO MAINTAIN A PREDETERMINED DISTANCE BETWEEN OPTICAL ELEMENTS, SUCH AS LENSES, RETICLES, AND THE LIKE. THE BORE MAY BE STRAIGHT, TAPERED OR COUNTERBORED, AND MAY HAVE ANNULAR SERRATIONS TO CONVERGE OR DIVERGE LIGHT RAYS. THE SURFACES, WHICH MATE WITH THE OPTICS, ARE USUALLY CHAMFERED, CONCAVE, AND/OR HAVE A SPECIFIED FINISH DESIGNATION IN THE RANGE OF 1 TO 125 MICROINCHES ARITHMETICAL AVERAGE (AA). SEE ALSO SPACER, SLEEVE AND CELL, OPTICAL ELEMENT.


Manufacturer Information:
011478908UNERTL JOHN OPTICAL CO INC


Techincal Specification:
OVERALL LENGTH0.097 INCHES NOMINAL


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