|
|
|
National Stock Number:
6650-00-456-5892
Federal Supply Class:
6650
National Item Identification Number:
004565892
Description:
WINDOW,OPTICAL INSTRUMENT
Detail:
A COLOR FREE ITEM OF TRANSPARENT OR TRANSLUCENT MATERIAL, USUALLY OPTICAL GLASS, HAVING SPECIFIC LIGHT DISPERSIVE AND REFRACTIVE PROPERTIES. THIS ITEM MUST HAVE TWO PLANE-PARALLEL SURFACES AND IS DESIGNED FOR USE IN AN OPTICAL INSTRUMENT TO PROVIDE A BARRIER TO FOREIGN MATTER AND/OR PERMIT LIGHT TRANSMISSION IN OR TO THE OPTICAL SYSTEM.
|
Manufacturer Information:
| 10189811 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | 10189811 | 26772 | WEGO PRECISION MACHINE, INC. | | 10189811 | 3D621 | IKARD MANUFACTURING CO | | 457-6104 | A486G | NIMIKKEISTOKESKUS NCB FINLAND |
|
Techincal Specification:
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174,CLASS 2,FINE ANNEALED MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED | | MATERIAL | GLASS OPTICAL LOCATION NOT OTHERWISE SPECIFIED | | POLISHED SURFACE | BOTH | | WIDTH | 4.690 INCHES MINIMUM AND 4.810 INCHES MAXIMUM | | SURFACE FINISH | GROUND | | THICKNESS | 0.060 INCHES MINIMUM AND 0.140 INCHES MAXIMUM |
|
|