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National Stock Number:
6650-00-382-0650
Federal Supply Class:
6650
National Item Identification Number:
003820650
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:
| 176445PC21 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| ELEMENT LEFT SURFACE RADIUS | -1.216 INCHES | | ELEMENT RIGHT SURFACE RADIUS | -1.216 INCHES AND 1.219 INCHES | | ABBE CONSTANT | 34.000 AND 57.500 | | BACK FOCAL LENGTH | 2.338 INCHES | | AXIAL THICKNESS | 0.078 INCHES NOMINAL AND 0.031 INCHES NOMINAL | | COMPOUND LENS EDGE THICKNESS | 0.167 INCHES NOMINAL | | COMPOUND LENS OVERALL AXIAL THICKNESS | 0.110 INCHES NOMINAL | | COMPOUND LENS STYLE | DOUBLET | | DIAMETER | 0.708 INCHES NOMINAL | | EQUIVALENT FOCAL LENGTH | 2.224 INCHES | | FRONT FOCAL LENGTH | 2.241 INCHES | | FSC APPLICATION DATA | FIRE CONTROL,RANGE FINDER MK 45 | | INDIVIDUAL LENS STYLE | PLANO-CONVEX AND DOUBLE CONCAVE | | MATERIAL DOCUMENT AND CLASSIFICATION | JAN-G-174, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | REFRACTION INDEX | 1.6460 NOMINAL AND 1.5720 NOMINAL |
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