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National Stock Number:
1240-01-318-3882
Federal Supply Class:
1240
National Item Identification Number:
013183882
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:
| 13077201-501 | 04939 | LOCKHEED MARTIN CORPORATION | | 13077201-501 | 58260 | PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH |
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Techincal Specification:
| DIAMETER | 1.802 INCHES MINIMUM AND 1.804 INCHES MAXIMUM | | MATERIAL | GLASS OPTICAL LOCATION NOT OTHERWISE SPECIFIED | | POLISHED PERIPHERY | PROVIDED | | WIDTH | 0.160 INCHES MINIMUM AND 0.164 INCHES MAXIMUM |
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