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National Stock Number:
1240-00-099-8211
Federal Supply Class:
1240
National Item Identification Number:
000998211
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:
| 7653003 | 08204 | MEL OPTICS CO | | 7653003 | 14001 | GRAYCO OPTICAL CORP | | 7653003 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| MATERIAL | GLASS OPTICAL | | MATERIAL DOCUMENT AND CLASSIFICATION | JAN-G-174, TYPE 523-586, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE | | POLISHED SURFACE | BOTH | | POLISHED PERIPHERY | NOT PROVIDED | | DIAMETER | 1.406 INCHES NOMINAL | | THICKNESS | 0.125 INCHES NOMINAL | | BEVEL ANGLE IN DEG | 45.0500 NOMINAL | | BEVEL DEPTH | 0.020 INCHES NOMINAL |
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