|
|
|
National Stock Number:
6650-00-999-8902
Federal Supply Class:
6650
National Item Identification Number:
009998902
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:
| 13212E3203 | 97403 | CECOM LR CENTER |
|
Techincal Specification:
| FSC APPLICATION DATA | DETECTING SETS,INFRARED,NONCOMMUNICATION | | OVERALL LENGTH | 0.055 INCHES NOMINAL | | MATERIAL | PLASTIC ACETAL | | SPECIAL FEATURES | SURFACE LUBRICATED;CONTAINS A LIGHT STABILIZER;BLACK FINISH | | STRAIGHT BORE DEPTH | 0.005 INCHES NOMINAL | | STRAIGHT BORE INSIDE DIAMETER | 2.510 INCHES NOMINAL | | TAPER ANGLE | 20.0 DEGREES NOMINAL |
|
|