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National Stock Number:
1240-00-641-0659
Federal Supply Class:
1240
National Item Identification Number:
006410659
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:
| 165642PC1 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| DISPERSION | 58.0 ANGSTROMS NOMINAL | | FSC APPLICATION DATA | TELESCOPE MK61,MOD 0 | | LENGTH | 164.592 MILLIMETERS MINIMUM AND 165.100 MILLIMETERS MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-16592, GRADE A MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | GLASS | | SPECIAL FEATURES | 4 CORNERS 12.7 MM PORM .20 RADIUS | | POLISHED PERIPHERY | NOT PROVIDED | | POLISHED SURFACE | BOTH | | REFLECTION REDUCING SURFACE | BOTH | | REFRACTION INDEX | 1.5230 NOMINAL | | WIDTH | 82.0 MILLIMETERS MINIMUM AND 82.6 MILLIMETERS MAXIMUM | | THICKNESS | 11.180 MILLIMETERS MINIMUM AND 11.688 MILLIMETERS MAXIMUM |
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