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National Stock Number:
4920-00-815-2659
Federal Supply Class:
4920
National Item Identification Number:
008152659
Description:
WINDOW,OPTICAL INST
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:
| 568A271P1 | 24446 | GENERAL ELECTRIC COMPANY | | 568A271P1 | 89954 | BAE SYSTEMS CONTROLS INC. |
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Techincal Specification:
| BEVEL ANGLE IN DEG | 45.000 NOMINAL | | BEVEL DEPTH | 0.260 MILLIMETERS MINIMUM AND 0.390 MILLIMETERS MAXIMUM | | DISPERSION | 64.5 ANGSTROMS NOMINAL | | FSC APPLICATION DATA | TEST SET,INDICATOR ASSY,FAULT LOCATING PART NO. 535E211G1 | | LENGTH | 78.740 MILLIMETERS MINIMUM AND 79.248 MILLIMETERS MAXIMUM | | MATERIAL | GLASS LOCATION NOT OTHERWISE SPECIFIED | | POLISHED PERIPHERY | NOT PROVIDED | | POLISHED SURFACE | BOTH | | REFRACTION INDEX | 1.5180 NOMINAL | | WIDTH | 49.276 MILLIMETERS MINIMUM AND 49.784 MILLIMETERS MAXIMUM | | THICKNESS | 2.910 MILLIMETERS MINIMUM AND 3.170 MILLIMETERS MAXIMUM |
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