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National Stock Number:
1240-01-068-0743
Federal Supply Class:
1240
National Item Identification Number:
010680743
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:
| 12266718 | 03829 | GENERAL SCIENTIFIC CORP | | 12266718 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 42029 | 93706 | RECON/OPTICAL, INC. DBA PACIFIC OPTICAL |
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Techincal Specification:
| DIAMETER | 2.623 INCHES MINIMUM AND 2.625 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174 MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED | | MATERIAL | GLASS OPTICAL LOCATION NOT OTHERWISE SPECIFIED | | POLISHED PERIPHERY | PROVIDED | | SURFACE FINISH | GROUND AND POLISHED | | THICKNESS | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM |
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