|
|
|
National Stock Number:
6650-01-092-6476
Federal Supply Class:
6650
National Item Identification Number:
010926476
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:
| 10554778 | 19200 | US ARMY ARDEC RDECOM |
|
Techincal Specification:
| BODY DIAMETER | 2.500 INCHES NOMINAL | | FLANGE WIDTH | 0.375 INCHES NOMINAL | | INTERNAL SHOULDER DIAMETER | 1.625 INCHES NOMINAL | | INTERNAL SHOULDER THICKNESS | 0.469 INCHES NOMINAL | | OVERALL LENGTH | 5.781 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY | | SMALLER FLANGE WIDTH | 0.230 INCHES NOMINAL | | STRAIGHT BORE DEPTH | 4.781 INCHES NOMINAL | | STRAIGHT BORE INSIDE DIAMETER | 1.750 INCHES NOMINAL | | STYLE DESIGNATOR | SPACER | | TAPER BORE MAJOR DIAMETER | 1.625 INCHES MAXIMUM |
|
|