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National Stock Number:
6650-00-251-7512
Federal Supply Class:
6650
National Item Identification Number:
002517512
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:
| 11741684 | 03829 | GENERAL SCIENTIFIC CORP | | 11741684 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| ELEMENT LEFT SURFACE RADIUS | 1.661 INCHES | | ABBE CONSTANT | 58.600 | | AXIAL THICKNESS | 0.108 INCHES MINIMUM AND 0.128 INCHES MAXIMUM | | BACK FOCAL LENGTH | 3.098 INCHES | | DIAMETER | 0.557 INCHES MINIMUM AND 0.560 INCHES MAXIMUM | | EQUIVALENT FOCAL LENGTH | 3.176 INCHES | | FSC APPLICATION DATA | TRAINER,TANK GUNNERY | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE B, TYPE 523-586 MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | REFRACTION INDEX | 1.5230 NOMINAL | | SINGLE LENS STYLE | PLANO-CONVEX | | SPECIAL FEATURES | EDGES BEVELED 0.005 TO 0.010 IN. BY 45 DEG. RIM AND BEVELED EDGES GROUND. |
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