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National Stock Number:
1240-01-314-5195
Federal Supply Class:
1240
National Item Identification Number:
013145195
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:
| 60511649-1 | 34860 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| DIAMETER | 0.347 INCHES MINIMUM AND 0.349 INCHES MAXIMUM | | MATERIAL | GLASS LOCATION NOT OTHERWISE SPECIFIED | | POLISHED PERIPHERY | PROVIDED | | POLISHED SURFACE | BOTH | | SPECIAL FEATURES | MATERIAL CORNING GLASS 8612 | | SURFACE FINISH | POLISHED AND FINE GROUND | | THICKNESS | 0.034 INCHES MINIMUM AND 0.044 INCHES MAXIMUM |
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