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National Stock Number:
6650-00-757-8043
Federal Supply Class:
6650
National Item Identification Number:
007578043
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:
| 7578043 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| ELEMENT LEFT SURFACE RADIUS | 2.549 INCHES | | ELEMENT RIGHT SURFACE RADIUS | 27.234 INCHES | | ABBE CONSTANT | 55.000 | | AXIAL THICKNESS | 0.270 INCHES NOMINAL | | BACK FOCAL LENGTH | 4.356 INCHES | | COMPOUND LENS EDGE THICKNESS | 0.188 INCHES NOMINAL | | COMPOUND LENS OVERALL AXIAL THICKNESS | 0.270 INCHES NOMINAL | | DIAMETER | 1.343 INCHES NOMINAL | | EQUIVALENT FOCAL LENGTH | 4.540 INCHES | | FSC APPLICATION DATA | PERISCOPE,M14A1,INTEGRATED WITH FIRE CONTROL EQUIPMENT | | INDIVIDUAL LENS STYLE | PLANO-CONVEX | | MATERIAL DOCUMENT AND CLASSIFICATION | JAN-G-174, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | REFRACTION INDEX | 1.6170 NOMINAL | | SINGLE LENS STYLE | PLANO-CONVEX |
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