6650-00-759-6946 MIRROR,OPTICAL INSTRUMENT Index 6650-00-904-9371 RETICLE,OPTICAL INSTRUMENT

National Stock Number:
6650-00-768-7264

Federal Supply Class:
6650

National Item Identification Number:
007687264

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:
768726419200US ARMY ARDEC RDECOM
76872644K539POLYTECH DEFENSE SPARES LLC


Techincal Specification:
END INTERNAL BEVEL ANGLE0.0 DEGREES NOMINAL
BODY OUTSIDE DIAMETER0.999 INCHES MAXIMUM
OVERALL LENGTH0.242 INCHES NOMINAL
MATERIALCOPPER ALLOY
SERRATION WIDTH0.192 INCHES NOMINAL
STRAIGHT BORE INSIDE DIAMETER0.940 INCHES NOMINAL
STYLE DESIGNATORSPACER


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