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National Stock Number:
6650-00-504-9913
Federal Supply Class:
6650
National Item Identification Number:
005049913
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:
| 1240005049913 | A00AM | E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE | | 5049913 | 19200 | US ARMY ARDEC RDECOM | | DAD112730 | 35907 | DIRECTOR GENERAL LAND EQUIPMENT PROGRAM MANAGEMENT |
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Techincal Specification:
| ELEMENT LEFT SURFACE RADIUS | 2.446 INCHES | | ELEMENT RIGHT SURFACE RADIUS | 1.664 INCHES | | ABBE CONSTANT | 64.500 AND 33.800 | | BACK FOCAL LENGTH | 3.911 INCHES | | AXIAL THICKNESS | 0.130 INCHES NOMINAL AND 0.064 INCHES NOMINAL | | COMPOUND LENS EDGE THICKNESS | 0.171 INCHES NOMINAL | | COMPOUND LENS OVERALL AXIAL THICKNESS | 0.194 INCHES NOMINAL | | COMPOUND LENS STYLE | DOUBLET | | DIAMETER | 0.719 INCHES NOMINAL | | EQUIVALENT FOCAL LENGTH | 4.004 INCHES | | FSC APPLICATION DATA | PANORAMIC TELESCOPE,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 | 1.5170 NOMINAL AND 1.6490 NOMINAL |
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