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National Stock Number:
6650-00-683-9551
Federal Supply Class:
6650
National Item Identification Number:
006839551
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:
| 1240006839551 | A00AM | E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE | | 8574707 | 19200 | US ARMY ARDEC RDECOM | | MIL013830 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| ELEMENT RIGHT SURFACE RADIUS | 6.346 INCHES | | ELEMENT LEFT SURFACE RADIUS | 2.015 INCHES | | ABBE CONSTANT | 30.900 AND 58.600 | | AXIAL THICKNESS | 0.161 INCHES NOMINAL AND 0.709 INCHES NOMINAL | | COMPOUND LENS EDGE THICKNESS | 0.5625 INCHES NOMINAL | | COMPOUND LENS OVERALL AXIAL THICKNESS | 0.870 INCHES NOMINAL | | COMPOUND LENS STYLE | DOUBLET | | DIAMETER | 2.244 INCHES NOMINAL | | EQUIVALENT FOCAL LENGTH | 106.870 INCHES | | FRONT FOCAL LENGTH | 88.273 INCHES | | FSC APPLICATION DATA | TELESCOPE,M105C,INTEGRATED WITH FIRE CONTROL EQUIPMENT | | INDIVIDUAL LENS STYLE | DOUBLE CONCAVE AND DOUBLE CONVEX | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | REFRACTION INDEX | 1.5200 NOMINAL AND 1.6890 NOMINAL |
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