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National Stock Number:
6650-00-087-1569
Federal Supply Class:
6650
National Item Identification Number:
000871569
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-B-614666 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR | | SC-B-614666 | 84027 | AIW-ALTON INC |
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Techincal Specification:
| BODY OUTSIDE DIAMETER | 0.312 INCHES MAXIMUM | | FSC APPLICATION DATA | NIGHT VISION EQUIPMENT,EMITTED AND REFLECTED RADIATION | | OVERALL THICKNESS | 0.111 INCHES NOMINAL | | MATERIAL | STEEL CORROSION RESISTING | | STYLE DESIGNATOR | SPACER | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-STD-171 MIL STD SINGLE TREATMENT RESPONSE | | SURFACE TREATMENT | OXIDE | | TAPER BORE MINOR DIAMETER | 0.201 INCHES NOMINAL |
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