5940-01-421-4023 TERMINAL,STUD Index 6240-01-421-4025 COVER,LAMP

National Stock Number:
6650-01-421-4024

Federal Supply Class:
6650

National Item Identification Number:
014214024

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.


Manufacturer Information:
3354AS21430003NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER
3354AS214-135733LENOX INSTRUMENT CO., INC.


Techincal Specification:
MATERIALALUMINUM
PROPRIETARY CHARACTERISTICSPACS
SPECIAL FEATURESNOMINAL STOCK SIZE:.50 TUBE;TITLE:SPACER,LENS;LG:2.000 IN.


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