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National Stock Number:
6650-00-382-1334
Federal Supply Class:
6650
National Item Identification Number:
003821334
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:
| 279539PC4 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | 279539PC4 | 78039 | LEICA INC SURVEYING AND PHOTOGRAMMETRY SYSTEMS DIV |
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Techincal Specification:
| END INTERNAL BEVEL ANGLE | 42.2 DEGREES NOMINAL | | BODY OUTSIDE DIAMETER | 1.610 INCHES MAXIMUM | | FSC APPLICATION DATA | TELESCOPE MK74 | | OVERALL LENGTH | 0.596 INCHES NOMINAL | | MATERIAL | COPPER ALLOY | | SMALLEST END INTERNAL BEVEL ANGLE | 36.4 DEGREES NOMINAL | | SERRATION WIDTH | 0.540 INCHES NOMINAL | | STRAIGHT BORE INSIDE DIAMETER | 1.457 INCHES NOMINAL | | STYLE DESIGNATOR | SPACER |
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