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National Stock Number:
6650-00-167-7888
Federal Supply Class:
6650
National Item Identification Number:
001677888
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:
| 1122663 | 12705 | BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION I | | 1122663 | 94117 | BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. | | SCC635108 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR | | SCC635108-1 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR |
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Techincal Specification:
| ELEMENT RIGHT SURFACE RADIUS | -1.8704 INCHES AND 2.2592 INCHES AND -1.6234 INCHES | | ELEMENT LEFT SURFACE RADIUS | 3.8233 INCHES AND -1.8704 INCHES AND 2.2593 INCHES | | ABBE CONSTANT | 47.390 AND 23.830 | | AXIAL THICKNESS | 0.153 INCHES NOMINAL AND 0.075 INCHES NOMINAL AND 0.195 INCHES NOMINAL | | BACK FOCAL LENGTH | 1.336 INCHES | | COMPOUND LENS EDGE THICKNESS | 0.277 INCHES NOMINAL | | COMPOUND LENS OVERALL AXIAL THICKNESS | 0.423 INCHES NOMINAL | | COMPOUND LENS STYLE | TRIPLET | | DIAMETER | 1.140 INCHES NOMINAL | | EQUIVALENT FOCAL LENGTH | 1.393 INCHES | | FRONT FOCAL LENGTH | 1.242 INCHES | | FSC APPLICATION DATA | NIGHT VISION EQUIPMENT,EMITTED AND REFLECTED RADIATION | | INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND PLANO-CONVEX | | LENGTH | 0.423 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174,TYPE LAF-21,788-474 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-G-174,TYPE SF-57,847-238 MIL SPEC 2ND MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | REFRACTION INDEX | 1.7883 NOMINAL AND 1.8466 NOMINAL |
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