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National Stock Number:
6650-00-507-9255
Federal Supply Class:
6650
National Item Identification Number:
005079255
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:
| 6650005079255 | A00AM | E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE | | 8200007 | 03829 | GENERAL SCIENTIFIC CORP | | 8200007 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| ELEMENT LEFT SURFACE RADIUS | -2.649 INCHES AND 22.769 INCHES | | ELEMENT RIGHT SURFACE RADIUS | -2.649 INCHES AND 6.235 INCHES | | ABBE CONSTANT | 58.600 AND 36.200 | | AXIAL THICKNESS | 0.204 INCHES NOMINAL AND 0.143 INCHES NOMINAL | | BACK FOCAL LENGTH | 11.660 INCHES | | COMPOUND LENS EDGE THICKNESS | 0.289 INCHES NOMINAL | | COMPOUND LENS OVERALL AXIAL THICKNESS | 0.347 INCHES NOMINAL | | COMPOUND LENS STYLE | DOUBLET | | DIAMETER | 1.500 INCHES NOMINAL | | EQUIVALENT FOCAL LENGTH | 11.682 INCHES | | FSC APPLICATION DATA | FINDER,RANGE,T42E1,INTEGRATED WITH FIRE CONTROL EQUIPMENT | | 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 | 1.5230 NOMINAL AND 1.6210 NOMINAL |
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