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National Stock Number:
6650-00-382-1831
Federal Supply Class:
6650
National Item Identification Number:
003821831
Description:
LENS,OPTICAL INSTRUMENT
Detail:
An unmounted, transparent, color free lens which may be treated with a low reflection coating to increase light transmission. Includes single and compound elements. For items having two plane parallel surfaces, see WINDOW, OPTICAL INSTRUMENT. Excludes RETICLE, OPTICAL INSTRUMENT.
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Manufacturer Information:
| LD172589GP43 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | LD172589PC43 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| ELEMENT LEFT SURFACE RADIUS | -3.370 INCHES AND 6.181 INCHES | | ELEMENT RIGHT SURFACE RADIUS | -3.370 INCHES AND -28.346 INCHES | | ABBE CONSTANT | 57.700 AND 36.600 | | BACK FOCAL LENGTH | 9.726 INCHES | | AXIAL THICKNESS | 0.236 INCHES NOMINAL AND 0.118 INCHES NOMINAL | | COMPOUND LENS EDGE THICKNESS | 0.304 INCHES NOMINAL | | COMPOUND LENS OVERALL AXIAL THICKNESS | 0.354 INCHES NOMINAL | | COMPOUND LENS STYLE | DOUBLET | | DIAMETER | 1.417 INCHES NOMINAL | | EQUIVALENT FOCAL LENGTH | 9.921 INCHES | | FRONT FOCAL LENGTH | 9.893 INCHES | | FSC APPLICATION DATA | FIRE CONTROL,TELESCOPE,MK67 | | INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE B MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | REFRACTION INDEX | 1.5740 NOMINAL AND 1.6210 NOMINAL |
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