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National Stock Number:
6650-00-683-9553
Federal Supply Class:
6650
National Item Identification Number:
006839553
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:
| 8574713 | 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 LEFT SURFACE RADIUS | 2.156 INCHES | | ELEMENT RIGHT SURFACE RADIUS | 30.776 MILLIMETERS | | ABBE CONSTANT | 64.500 | | AXIAL THICKNESS | 0.196 INCHES NOMINAL | | BACK FOCAL LENGTH | 4.840 INCHES | | DIAMETER | 1.485 INCHES NOMINAL | | EQUIVALENT FOCAL LENGTH | 4.474 INCHES | | INDIVIDUAL LENS STYLE | PLANO-CONVEX | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE B MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | REFRACTION INDEX | 1.5170 NOMINAL | | SINGLE LENS STYLE | PLANO-CONVEX |
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