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National Stock Number:
1240-01-116-6993
Federal Supply Class:
1240
National Item Identification Number:
011166993
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:
| L317000135 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | L317000135 | 36090 | LOCKHEED MARTIN LIBRASCOPE CORP |
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Techincal Specification:
| LENGTH | 24.969 INCHES MINIMUM AND 25.031 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 | BOTH | | REFLECTION REDUCING SURFACE | BOTH | | THICKNESS | 0.344 INCHES MINIMUM AND 0.422 INCHES MAXIMUM | | WIDTH | 21.969 INCHES MINIMUM AND 22.031 INCHES MAXIMUM |
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