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National Stock Number:
6650-00-507-9254
Federal Supply Class:
6650
National Item Identification Number:
005079254
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:
| 6650005079254 | A00AM | E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE | | 8200005 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| ELEMENT LEFT SURFACE RADIUS | 7.289 INCHES | | ELEMENT RIGHT SURFACE RADIUS | 4.111 INCHES | | ABBE CONSTANT | 57.400 AND 33.800 | | BACK FOCAL LENGTH | 10.455 INCHES | | AXIAL THICKNESS | 0.179 INCHES NOMINAL AND 0.130 INCHES NOMINAL | | COMPOUND LENS EDGE THICKNESS | 0.269 INCHES NOMINAL | | COMPOUND LENS OVERALL AXIAL THICKNESS | 0.309 INCHES NOMINAL | | COMPOUND LENS STYLE | DOUBLET | | DIAMETER | 1.300 INCHES NOMINAL | | EQUIVALENT FOCAL LENGTH | 10.600 INCHES | | FSC APPLICATION DATA | FINDER,RANGE,T46E1 INTEGRATED WITH FIRE CONTROL EQUIPMENT | | INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND PLANO-CONCAVE | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE B MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | REFRACTION INDEX | 1.5725 NOMINAL AND 1.6490 NOMINAL |
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