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National Stock Number:
6650-00-921-1037
Federal Supply Class:
6650
National Item Identification Number:
009211037
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:
| A25A993-306-101 | 99696 | LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN SYSTEMS & GLOBAL SOLUTIONS |
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Techincal Specification:
| ELEMENT LEFT SURFACE RADIUS | 1.182 INCHES | | ELEMENT RIGHT SURFACE RADIUS | -7.095 INCHES | | ABBE CONSTANT | 58.500 | | AXIAL THICKNESS | 0.250 INCHES NOMINAL | | BACK FOCAL LENGTH | 1.797 INCHES | | DIAMETER | 1.190 INCHES NOMINAL | | EQUIVALENT FOCAL LENGTH | 1.772 INCHES | | FRONT FOCAL LENGTH | 1.797 INCHES | | LENGTH | 1.190 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE B, FORM PLATES MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | SINGLE LENS STYLE | DOUBLE CONVEX | | REFRACTION INDEX | 1.5230 NOMINAL |
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