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National Stock Number:
6650-00-816-0504
Federal Supply Class:
6650
National Item Identification Number:
008160504
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:
| 1575539 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| ABBE CONSTANT | 64.500 AND 33.800 | | AXIAL THICKNESS | 0.315 INCHES NOMINAL AND 0.157 INCHES NOMINAL | | BACK FOCAL LENGTH | 11.365 INCHES | | COMPOUND LENS EDGE THICKNESS | 0.410 INCHES NOMINAL | | COMPOUND LENS OVERALL AXIAL THICKNESS | 0.472 INCHES NOMINAL | | COMPOUND LENS STYLE | DOUBLET | | DIAMETER | 1.573 INCHES MINIMUM AND 1.575 INCHES MAXIMUM | | EQUIVALENT FOCAL LENGTH | 11.609 INCHES | | FRONT FOCAL LENGTH | 11.548 INCHES | | FSC APPLICATION DATA | 1. FIRE CONTROL COMPUTING SIGHTS AND DEVICES | | INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS CONVERGING | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | REFRACTION INDEX | 1.5170 NOMINAL AND 1.6490 NOMINAL |
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