|
|
|
National Stock Number:
6650-01-173-5651
Federal Supply Class:
6650
National Item Identification Number:
011735651
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:
| 13077527 | 51215 | BOEING COMPANY, THE | | 13077527 | 58260 | PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH |
|
Techincal Specification:
| OVERALL LENGTH | 0.374 INCHES MINIMUM AND 0.384 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | WW-T-700/6,T6,TYPE 1 FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 6061 | | STRAIGHT BORE DEPTH | 0.255 INCHES NOMINAL | | STRAIGHT BORE INSIDE DIAMETER | 4.375 INCHES NOMINAL | | STYLE DESIGNATOR | SPACER | | TAPER BORE MINOR DIAMETER | 4.250 INCHES MAXIMUM |
|
|