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National Stock Number:
6650-00-450-1749
Federal Supply Class:
6650
National Item Identification Number:
004501749
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:
| 248578-15 | 89944 | ELBITAMERICA, INC. |
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Techincal Specification:
| ABBE CONSTANT | 5058.600 | | AXIAL THICKNESS | 0.437 INCHES NOMINAL | | BACK FOCAL LENGTH | 3.074 INCHES | | DIAMETER | 1.732 INCHES NOMINAL | | EQUIVALENT FOCAL LENGTH | 3.304 INCHES | | FRONT FOCAL LENGTH | 3.185 INCHES | | INDIVIDUAL LENS STYLE | DOUBLE CONVEX | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, GRADE B, TYPE 613-586 MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | REFRACTION INDEX | 1.6130 NOMINAL | | SINGLE LENS STYLE | DOUBLE CONVEX |
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