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National Stock Number:
6650-00-683-9550
Federal Supply Class:
6650
National Item Identification Number:
006839550
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:
| 8574712 | 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 | 2.701 INCHES | | ELEMENT LEFT SURFACE RADIUS | 1.441 INCHES | | ABBE CONSTANT | 58.800 AND 36.600 | | AXIAL THICKNESS | 0.622 INCHES NOMINAL AND 0.338 INCHES NOMINAL | | BACK FOCAL LENGTH | 9.270 INCHES | | COMPOUND LENS EDGE THICKNESS | 0.8125 INCHES NOMINAL | | COMPOUND LENS OVERALL AXIAL THICKNESS | 0.9600 INCHES NOMINAL | | COMPOUND LENS STYLE | DOUBLET | | DIAMETER | 1.4370 INCHES NOMINAL | | EQUIVALENT FOCAL LENGTH | 6.340 INCHES | | FSC APPLICATION DATA | TELESCOPE,M105C,INTEGRATED WITH FIRE CONTROL EQUIPMENT | | INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND DOUBLE CONCAVE | | MATERIAL DOCUMENT AND CLASSIFICATION | JAN-G-174, GRADE B MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | REFRACTION INDEX | 1.6110 NOMINAL AND 1.6170 NOMINAL |
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