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National Stock Number:
6650-00-451-1087
Federal Supply Class:
6650
National Item Identification Number:
004511087
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:
| 7688776 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| END INTERNAL BEVEL ANGLE | 45.0 DEGREES NOMINAL | | FSC APPLICATION DATA | PERISCOPE,TANK | | OVERALL LENGTH | 0.183 INCHES MINIMUM AND 0.187 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/3,ALLOY 2011,T3 FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 2011 | | SERRATION WIDTH | 0.133 INCHES MINIMUM AND 0.137 INCHES MAXIMUM | | STRAIGHT BORE INSIDE DIAMETER | 1.196 INCHES MINIMUM AND 1.204 INCHES MAXIMUM | | STYLE DESIGNATOR | SPACER |
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