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National Stock Number:
6650-00-546-9641
Federal Supply Class:
6650
National Item Identification Number:
005469641
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:
| 6650005469641 | A00AM | E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE | | 8200149 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| ELEMENT LEFT SURFACE RADIUS | 6.164 INCHES | | ELEMENT RIGHT SURFACE RADIUS | 2.572 INCHES | | ABBE CONSTANT | 1.605 | | AXIAL THICKNESS | 0.142 INCHES NOMINAL AND 0.236 INCHES NOMINAL | | BACK FOCAL LENGTH | 13.192 INCHES | | COMPOUND LENS EDGE THICKNESS | 0.333 INCHES NOMINAL | | COMPOUND LENS OVERALL AXIAL THICKNESS | 0.378 INCHES NOMINAL | | COMPOUND LENS STYLE | DOUBLET | | DIAMETER | 1.400 INCHES NOMINAL | | EQUIVALENT FOCAL LENGTH | 13.189 INCHES | | FRONT FOCAL LENGTH | 12.814 INCHES | | FSC APPLICATION DATA | RANGE FINDER,INTEGRATED WITH FIRE CONTROL EQUIP | | INDIVIDUAL LENS STYLE | MENISCUS DIVERGING AND DOUBLE CONVEX | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | REFRACTION INDEX | 1.5230 NOMINAL |
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