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National Stock Number:
6650-00-010-5228
Federal Supply Class:
6650
National Item Identification Number:
000105228
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:
| SC-C-599163 | 52808 | DUNLIN MANUFACTURING / SKYPEN INDUSTRIES INC | | SC-C-599163 | 65534 | ALEK INDUSTRIES INC | | SC-C-599163 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR |
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Techincal Specification:
| END INTERNAL BEVEL ANGLE | 45.0 DEGREES NOMINAL | | BODY OUTSIDE DIAMETER | 2.875 INCHES MAXIMUM | | FSC APPLICATION DATA | NIGHT VISION EQUIP. EMITTED AND REFLECTED RADIATION | | OVERALL LENGTH | 0.200 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY 2024 | | STRAIGHT BORE INSIDE DIAMETER | 2.474 INCHES MINIMUM AND 2.476 INCHES MAXIMUM | | STYLE DESIGNATOR | SPACER | | SURFACE TREATMENT | ANODIZE AND ENAMEL LUSTERLESS |
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