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National Stock Number:
6650-00-451-1085
Federal Supply Class:
6650
National Item Identification Number:
004511085
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:
| 7688723 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| BODY MINOR TAPER DIAMETER | 1.255 INCHES MAXIMUM | | BODY TAPER | 30.5 DEGREES MINIMUM | | EXTERNAL SHOULDER DEPTH | 0.047 INCHES NOMINAL | | EXTERNAL SHOULDER DIAMETER | 1.055 INCHES MINIMUM AND 1.061 INCHES MAXIMUM | | FSC APPLICATION DATA | PERISCOPE,TANK | | OVERALL LENGTH | 0.483 INCHES MINIMUM AND 0.487 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/5,T4 FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 2011 | | SERRATION WIDTH | 0.402 INCHES MINIMUM AND 0.406 INCHES MAXIMUM | | STRAIGHT BODY PORTION WIDTH | 0.225 INCHES MINIMUM AND 0.245 INCHES MAXIMUM | | STYLE DESIGNATOR | SPACER | | TAPER ANGLE | 21.0 DEGREES NOMINAL |
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