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National Stock Number:
1240-00-210-4384
Federal Supply Class:
1240
National Item Identification Number:
002104384
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:
| 1049116 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | MIL1797 | 06175 | BAUSCH & LOMB INC |
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Techincal Specification:
| DIAMETER | 46.6 MILLIMETERS MINIMUM AND 47.0 MILLIMETERS MAXIMUM | | DISPERSION | 64.5 ANGSTROMS NOMINAL | | FSC APPLICATION DATA | OPTICAL SIGHTING AND RANGING EQUIPMENT | | MATERIAL DOCUMENT AND CLASSIFICATION | JAN-G-174, GRADE B MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED | | MATERIAL | GLASS OPTICAL LOCATION NOT OTHERWISE SPECIFIED | | POLISHED PERIPHERY | NOT PROVIDED | | POLISHED SURFACE | BOTH | | REFLECTION REDUCING SURFACE | BOTH | | REFRACTION INDEX | 1.5170 NOMINAL | | SURFACE FINISH | POLISHED | | THICKNESS | 7.6 MILLIMETERS MINIMUM AND 8.0 MILLIMETERS MAXIMUM |
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