|
|
|
National Stock Number:
6650-01-443-4048
Federal Supply Class:
6650
National Item Identification Number:
014434048
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.
|
Manufacturer Information:
| 11733428 | 19200 | US ARMY ARDEC RDECOM |
|
Techincal Specification:
| END INTERNAL BEVEL DIAMETER | 1.794 INCHES NOMINAL | | END INTERNAL BEVEL ANGLE | 54.0 DEGREES NOMINAL | | BODY DIAMETER | 2.106 INCHES NOMINAL | | BODY OUTSIDE DIAMETER | 2.106 INCHES NOMINAL | | OVERALL LENGTH | 0.491 INCHES NOMINAL | | OVERALL THICKNESS | 0.411 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY | | STYLE DESIGNATOR | SPACER | | SURFACE FINISH | 125.0 MICROINCHES OVERALL | | TAPER BORE MAJOR DIAMETER | 2.015 INCHES NOMINAL | | TAPER BORE MINOR DIAMETER | 1.695 INCHES NOMINAL |
|
|