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National Stock Number:
6650-00-759-3589
Federal Supply Class:
6650
National Item Identification Number:
007593589
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:
| 7593589 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| ELEMENT LEFT SURFACE RADIUS | 1.971 INCHES | | ELEMENT RIGHT SURFACE RADIUS | 7.968 INCHES | | ABBE CONSTANT | 64.500 | | AXIAL THICKNESS | 0.545 INCHES NOMINAL | | BACK FOCAL LENGTH | 4.450 INCHES | | DIAMETER | 1.733 INCHES NOMINAL | | EQUIVALENT FOCAL LENGTH | 4.913 INCHES | | FSC APPLICATION DATA | PERISCOPE,M20A1 | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | REFRACTION INDEX | 1.5170 NOMINAL | | SINGLE LENS STYLE | MENISCUS CONVERGING |
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