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National Stock Number:
6650-00-066-4999
Federal Supply Class:
6650
National Item Identification Number:
000664999
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:
| 8626400 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| BEVEL ANGLE IN DEG | 45.000 NOMINAL | | BEVEL DEPTH | 0.020 INCHES NOMINAL | | FSC APPLICATION DATA | QUADRANT,FIRE CONTROL | | LENGTH | 1.650 INCHES MINIMUM AND 1.670 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | DD-G-451 FED SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED | | MATERIAL | GLASS LOCATION NOT OTHERWISE SPECIFIED | | POLISHED PERIPHERY | NOT PROVIDED | | POLISHED SURFACE | BOTH | | SPECIAL FEATURES | ROUNDED CORNERS WITH A 0.275 RADIUS | | WIDTH | 0.530 INCHES MINIMUM AND 0.550 INCHES MAXIMUM | | THICKNESS | 0.125 INCHES NOMINAL |
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