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National Stock Number:
6650-00-692-1527
Federal Supply Class:
6650
National Item Identification Number:
006921527
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:
| 8270607 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| ELEMENT RIGHT SURFACE RADIUS | 0.736 INCHES | | ELEMENT LEFT SURFACE RADIUS | 1.715 INCHES | | ABBE CONSTANT | 58.800 | | AXIAL THICKNESS | 0.152 INCHES NOMINAL | | BACK FOCAL LENGTH | 2.062 INCHES | | COMPOUND LENS EDGE THICKNESS | 0.046 INCHES NOMINAL | | COMPOUND LENS OVERALL AXIAL THICKNESS | 0.152 INCHES NOMINAL | | DIAMETER | 0.945 INCHES NOMINAL | | EQUIVALENT FOCAL LENGTH | 1.995 INCHES | | FSC APPLICATION DATA | 1. SIGHT PERISCOPE M28,INTEGRATED WITH FIRE CONTROL | | INDIVIDUAL LENS STYLE | MENISCUS DIVERGING AND DOUBLE CONVEX | | MATERIAL DOCUMENT AND CLASSIFICATION | JAN-G-174, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | REFRACTION INDEX | 1.6110 NOMINAL | | SINGLE LENS STYLE | MENISCUS CONVERGING |
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