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National Stock Number:
1240-01-073-1629
Federal Supply Class:
1240
National Item Identification Number:
010731629
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:
| 11507715 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | 11507715 | 34860 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 11507715 | 66429 | CVI LASER LLC DBA CVI OPTICAL COMPONENTS | | 11507715 | 82577 | RAYTHEON COMPANY |
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Techincal Specification:
| BEVEL ANGLE IN DEG | 20.000 MINIMUM AND 40.000 MAXIMUM | | BEVEL DEPTH | 0.038 INCHES MINIMUM AND 0.053 INCHES MAXIMUM | | DIAMETER | 4.248 INCHES MINIMUM AND 4.250 INCHES MAXIMUM | | FSC APPLICATION DATA | TARGET DESIGNATOR | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE A, TYPE 517-642 MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED | | MATERIAL | GLASS OPTICAL LOCATION NOT OTHERWISE SPECIFIED | | POLISHED PERIPHERY | PROVIDED | | POLISHED SURFACE | BOTH | | REFLECTION REDUCING SURFACE | BOTH | | THICKNESS | 0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM |
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