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National Stock Number: 6650-00-507-9256
Federal Supply Class: 6650
National Item Identification Number: 005079256
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:
6650005079256 | A00AM | E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE | 8200009 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
ELEMENT RIGHT SURFACE RADIUS | 3.117 INCHES | ELEMENT LEFT SURFACE RADIUS | 42.390 MILLIMETERS | ABBE CONSTANT | 58.600 AND 38.000 | AXIAL THICKNESS | 0.202 INCHES NOMINAL AND 0.150 INCHES NOMINAL | BACK FOCAL LENGTH | 14.932 INCHES | COMPOUND LENS EDGE THICKNESS | 0.309 INCHES NOMINAL | COMPOUND LENS OVERALL AXIAL THICKNESS | 0.352 INCHES NOMINAL | COMPOUND LENS STYLE | DOUBLET | DIAMETER | 1.500 INCHES NOMINAL | EQUIVALENT FOCAL LENGTH | 14.937 INCHES | FSC APPLICATION DATA | FINDER,RANGE,T42E1,INTEGRATED WITH FIRE CONTROL EQUIPMENT | INDIVIDUAL LENS STYLE | PLANO-CONCAVE 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 1.6050 NOMINAL |
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