1240-37-517-0862 WINDOW, DAY/IR 6650-37-517-0865 SPACER,OPTICAL ELEM

National Stock Number:
6650-37-517-0864

Federal Supply Class:
6650

National Item Identification Number:
375170864

Description:
SPACER,OPTICAL ELEM

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:
Q650219277369FHANWHA SYSTEMS CO.,LTD.
Q650219279998FDTAQ(DEFENSE AGENCY FOR TECHNOLOGY AND QUALITY ASSURANCE)


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