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National Stock Number:
6650-00-087-1566
Federal Supply Class:
6650
National Item Identification Number:
000871566
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:
| BP1924 | 27361 | BURKE PRODUCTS INC | | SC-B-614656 | 54261 | FREUND PRECISION INC | | SC-B-614656 | 60696 | KRDC INC DBA MARTIN-PALMER TOOL & DIE CO DIV | | SC-B-614656 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR |
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Techincal Specification:
| FSC APPLICATION DATA | NIGHT VISION EQUIP. EMITTED AND REFLECTED RADIATION | | MATERIAL | STEEL CORROSION RESISTING | | SPECIAL FEATURES | BLACK OXIDE FINISH | | STYLE DESIGNATOR | SPACER | | SUPPLEMENTARY FEATURES | HOLE INSIDE DIA OF 0.201 IN. MIN |
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