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National Stock Number:
6650-00-531-6358
Federal Supply Class:
6650
National Item Identification Number:
005316358
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:
| 5316358 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| ELEMENT LEFT SURFACE RADIUS | 3.002 INCHES | | ELEMENT RIGHT SURFACE RADIUS | 3.002 INCHES | | ABBE CONSTANT | 64.500 | | AXIAL THICKNESS | 0.316 INCHES MINIMUM AND 0.331 INCHES MAXIMUM | | BACK FOCAL LENGTH | 2.847 INCHES | | COMPOUND LENS EDGE THICKNESS | 0.159 INCHES NOMINAL | | COMPOUND LENS OVERALL AXIAL THICKNESS | 0.331 INCHES NOMINAL | | DIAMETER | 1.424 INCHES MINIMUM AND 1.427 INCHES MAXIMUM | | EQUIVALENT FOCAL LENGTH | 2.958 INCHES | | FSC APPLICATION DATA | TELESCOPE BC M65 | | INDIVIDUAL LENS STYLE | DOUBLE CONCAVE | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C, TYPE 517-645 MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | REFRACTION INDEX | 1.5170 NOMINAL | | SINGLE LENS STYLE | DOUBLE CONVEX |
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