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National Stock Number:
1240-00-006-4098
Federal Supply Class:
1240
National Item Identification Number:
000064098
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.
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Manufacturer Information:
| 10548621 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| MATERIAL | GLASS OPTICAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, GRADE D, TYPE 517-645 MIL SPEC SINGLE MATERIAL RESPONSE | | REFRACTION INDEX | 1.5170 NOMINAL | | SURFACE FINISH | GROUND | | POLISHED PERIPHERY | NOT PROVIDED | | DIAMETER | 2.300 INCHES NOMINAL | | THICKNESS | 0.125 INCHES NOMINAL | | BEVEL ANGLE IN DEG | 45.000 NOMINAL | | BEVEL DEPTH | 0.200 INCHES NOMINAL | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 19200 | | DESIGN CONTROL REFERENCE | 10548621 |
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