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National Stock Number:
6650-00-382-0891
Federal Supply Class:
6650
National Item Identification Number:
003820891
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:
| 217470PC8 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| END INTERNAL BEVEL ANGLE | 0.0 DEGREES NOMINAL | | BODY OUTSIDE DIAMETER | 1.929 INCHES MAXIMUM | | FSC APPLICATION DATA | TELESCOPE MK67 | | OVERALL LENGTH | 1.110 INCHES NOMINAL | | MATERIAL | COPPER ALLOY | | SERRATION WIDTH | 1.070 INCHES NOMINAL | | STRAIGHT BORE INSIDE DIAMETER | 1.830 INCHES NOMINAL | | STYLE DESIGNATOR | SPACER |
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