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National Stock Number:
6650-00-450-1748
Federal Supply Class:
6650
National Item Identification Number:
004501748
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:
| 248578-14 | 89944 | ELBITAMERICA, INC. |
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Techincal Specification:
| DIAMETER | 1.732 INCHES NOMINAL | | ABBE CONSTANT | 29.300 | | AXIAL THICKNESS | 0.118 INCHES NOMINAL | | BACK FOCAL LENGTH | 3.074 INCHES | | EQUIVALENT FOCAL LENGTH | 3.304 INCHES | | FRONT FOCAL LENGTH | 3.185 INCHES | | MATERIAL | GLASS, OPTICAL, MIL-G-174, GRADE B, TYPE 722-293 | | REFRACTION INDEX | 1.7220 NOMINAL | | SINGLE LENS STYLE | MENISCUS DIVERGING |
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