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National Stock Number:
6650-00-451-1084
Federal Supply Class:
6650
National Item Identification Number:
004511084
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:
| 1240004511084 | A00AM | E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE | | 7688721 | 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 | 0.188 INCHES MINIMUM AND 0.192 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/5,T4 FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 2011 | | SERRATION WIDTH | 0.138 INCHES MINIMUM AND 0.142 INCHES MAXIMUM | | STRAIGHT BORE INSIDE DIAMETER | 0.943 INCHES MINIMUM AND 0.953 INCHES MAXIMUM | | STYLE DESIGNATOR | SPACER |
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