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National Stock Number:
6650-01-209-2409
Federal Supply Class:
6650
National Item Identification Number:
012092409
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:
| 13084364 | 04939 | LOCKHEED MARTIN CORPORATION | | 13084364 | 22669 | COHERENT AEROSPACE & DEFENSE, INC. | | 13084364 | 58260 | PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH | | 1505000 | 54287 | ALPHA OPTICAL SYSTEMS INC |
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Techincal Specification:
| DISPERSION | 61.2 ANGSTROMS NOMINAL | | LENGTH | 2.250 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/11, T6 FED SPEC 1ST MATERIAL RESPONSE OR MIL-G-174 MIL SPEC 2ND MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED | | MATERIAL | ALUMINUM ALLOY 6061 AND GLASS OPTICAL LOCATION NOT OTHERWISE SPECIFIED | | POLISHED PERIPHERY | PROVIDED | | POLISHED SURFACE | BOTH | | REFRACTION INDEX | 1.5075 MINIMUM AND 1.5095 MAXIMUM | | SPECIAL FEATURES | WINDOW IS ENCLOSED IN A FRAME,INCLUDED IS A HEATER ELEMENT AND TEMPERATURE SENSOR | | WIDTH | 2.250 INCHES NOMINAL | | SURFACE FINISH | POLISHED | | THICKNESS | 0.370 INCHES NOMINAL |
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