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National Stock Number:
1240-00-332-1786
Federal Supply Class:
1240
National Item Identification Number:
003321786
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:
| 10556138 | 14001 | GRAYCO OPTICAL CORP | | 10556138 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| DIAMETER | 2.805 INCHES MINIMUM AND 2.810 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | DD-G-451, TYPE 1 FED SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED | | MATERIAL | GLASS PLATE LOCATION NOT OTHERWISE SPECIFIED | | POLISHED PERIPHERY | NOT PROVIDED | | POLISHED SURFACE | ONE | | THICKNESS | 0.219 INCHES NOMINAL |
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