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National Stock Number: 6650-00-622-4991
Federal Supply Class: 6650
National Item Identification Number: 006224991
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.
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Manufacturer Information:
8289300 | 19200 | US ARMY ARDEC RDECOM | 8289300 | 33950 | DELTA-X CORP |
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Techincal Specification:
END INTERNAL BEVEL ANGLE | 0.0 DEGREES NOMINAL | BODY OUTSIDE DIAMETER | 1.812 INCHES MAXIMUM | FSC APPLICATION DATA | PERISCOPE | OVERALL LENGTH | 0.490 INCHES NOMINAL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-200/3,T4 FED SPEC SINGLE MATERIAL RESPONSE | MATERIAL | ALUMINUM ALLOY 2024 | SERRATION WIDTH | 0.428 INCHES NOMINAL | SPECIAL FEATURES | INSIDE DIA ECCENTRIC | STRAIGHT BORE INSIDE DIAMETER | 1.625 INCHES NOMINAL | STYLE DESIGNATOR | SPACER |
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