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National Stock Number:
6650-01-113-0873
Federal Supply Class:
6650
National Item Identification Number:
011130873
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:
| 12293866 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | 12293866 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| ELEMENT LEFT SURFACE RADIUS | 1.425 INCHES | | ELEMENT RIGHT SURFACE RADIUS | 2.250 INCHES | | AXIAL THICKNESS | 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM | | BACK FOCAL LENGTH | 5.982 INCHES | | DIAMETER | 2.170 INCHES MINIMUM AND 2.180 INCHES MAXIMUM | | EQUIVALENT FOCAL LENGTH | 5.634 INCHES | | FRONT FOCAL LENGTH | 5.084 INCHES | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE B MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | SINGLE LENS STYLE | MENISCUS CONVERGING | | SPECIAL FEATURES | FRONT AND BACK SURFACES COATED PER DWG 19207-12293319 |
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