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National Stock Number:
6650-01-204-5981
Federal Supply Class:
6650
National Item Identification Number:
012045981
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:
| 8587342 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| BODY OUTSIDE DIAMETER | 0.834 INCHES MAXIMUM | | OVERALL LENGTH | 0.164 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,T351 FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 2024 | | SPECIAL FEATURES | SAWSLOT 0.057 IN. WIDE,0.050 DEEP,DYED BLACK FINISH | | STRAIGHT BORE INSIDE DIAMETER | 0.350 INCHES NOMINAL |
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