4710-01-050-2609 TUBE ASSEMBLY,METAL Index 5905-01-050-2611 RESISTOR,VARIABLE,WIRE WOUND,PRE

National Stock Number:
6650-01-050-2610

Federal Supply Class:
6650

National Item Identification Number:
010502610

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:
34477-1020-431009344ROCKWELL COLLINS, INC. DBA RC DISPLAYS SYSTEMS
34477-1020-431093707LIGGETT AND MYERS TOBACCO CO INC


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