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National Stock Number:
6650-01-082-3577
Federal Supply Class:
6650
National Item Identification Number:
010823577
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:
| 12266754 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| BODY OUTSIDE DIAMETER | 3.158 INCHES MAXIMUM | | OVERALL LENGTH | 0.518 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY | | SERRATION WIDTH | 0.518 INCHES NOMINAL | | STRAIGHT BORE INSIDE DIAMETER | 3.065 INCHES MINIMUM AND 3.075 INCHES MAXIMUM | | STYLE DESIGNATOR | SPACER |
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