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National Stock Number:
6650-01-114-9514
Federal Supply Class:
6650
National Item Identification Number:
011149514
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:
| 12293855 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | 12293855 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 12293855 | 3V790 | A L PRECISION CO |
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Techincal Specification:
| BODY MINOR TAPER DIAMETER | 2.562 INCHES MAXIMUM | | BODY TAPER | 45.0 DEGREES NOMINAL | | FLANGE WIDTH | 0.280 INCHES NOMINAL | | OVERALL LENGTH | 0.853 INCHES MINIMUM AND 0.855 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/8,T651 FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 6061 | | SERRATION WIDTH | 0.853 INCHES MINIMUM AND 0.855 INCHES MAXIMUM | | STYLE DESIGNATOR | SPACER | | TAPER ANGLE | 45.0 DEGREES NOMINAL |
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