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National Stock Number:
6650-00-531-9069
Federal Supply Class:
6650
National Item Identification Number:
005319069
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:
| 5319069 | 19204 | ARMY, UNITED STATES DEPARTMENT OF THE |
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Techincal Specification:
| ELEMENT LEFT SURFACE RADIUS | 1.300 INCHES | | ELEMENT RIGHT SURFACE RADIUS | 1.259 INCHES AND -1.172 INCHES | | ABBE CONSTANT | 32.200 AND 64.500 | | AXIAL THICKNESS | 0.098 INCHES NOMINAL AND 0.453 INCHES NOMINAL | | BACK FOCAL LENGTH | 3.106 INCHES | | COMPOUND LENS EDGE THICKNESS | 0.407 INCHES NOMINAL | | COMPOUND LENS OVERALL AXIAL THICKNESS | 0.551 INCHES NOMINAL | | COMPOUND LENS STYLE | DOUBLET | | DIAMETER | 1.124 INCHES NOMINAL | | EQUIVALENT FOCAL LENGTH | 2.995 INCHES | | FSC APPLICATION DATA | TELESCOPE M76C,INTEGRATED WITH FIRE CONTROL | | INDIVIDUAL LENS STYLE | PLANO-CONCAVE AND DOUBLE CONVEX | | MATERIAL DOCUMENT AND CLASSIFICATION | JAN-G-174, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | REFRACTION INDEX | 1.6720 NOMINAL AND 1.5170 NOMINAL |
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