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National Stock Number:
6650-01-503-4457
Federal Supply Class:
6650
National Item Identification Number:
015034457
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:
| 7408676 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| AXIAL THICKNESS | 2.794 MILLIMETERS NOMINAL | | DIAMETER | 50.000 MILLIMETERS NOMINAL | | MATERIAL | GLASS | | REFRACTION INDEX | 1.5860 NOMINAL | | SINGLE LENS STYLE | MENISCUS CONVERGING | | SPECIAL FEATURES | FRONT CURVE +0.50 DIOPTER; BACK CURVE -3.62 DIOPTER; COATING COBURN HT825 OR EQUAL; DIOPLER LENS -3.50 |
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