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National Stock Number:
6650-00-972-8639
Federal Supply Class:
6650
National Item Identification Number:
009728639
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:
| 002781 | 34228 | L3 TECHNOLOGIES, INC. | | 547A002781 | 03956 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 547A002781 | 34228 | L3 TECHNOLOGIES, INC. | | A547-339 | 34228 | L3 TECHNOLOGIES, INC. | | A547-339 | 4N133 | CHATHAM PRECISION INC |
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Techincal Specification:
| BODY DIAMETER | 0.078 INCHES NOMINAL | | OVERALL LENGTH | 2.441 INCHES MINIMUM AND 2.442 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-T-8506 MIL SPEC 1ST MATERIAL RESPONSE OR QQ-S-763,CLASS 416 FED SPEC 2ND MATERIAL RESPONSE | | MATERIAL | STEEL COMP 304 OR STEEL COMP 416 | | SPECIAL FEATURES | 0.250 IN. RADIUS INDENT AT CENTER ALONG LENGTH ONE SIDE |
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