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National Stock Number:
1240-00-210-4393
Federal Supply Class:
1240
National Item Identification Number:
002104393
Description:
CELL,OPTICAL ELEMENT
Detail:
A CYLINDRICAL ITEM SPECIFICALLY DESIGNED TO HOLD A LENS, RETICLE, OR WINDOW IN AN OPTICAL SYSTEM. INCLUDES ECCENTRIC CELLS AND/OR RINGS DESIGNED TO BE ROTATED WITHIN THE INSTRUMENT TO SHIFT AN OPTICAL ELEMENT TO A PRESCRIBED POSITION.
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Manufacturer Information:
| 1262789 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | 789PC2 | 02622 | AMERICAN OPTICAL CO | | 789PC2 | 78039 | LEICA INC SURVEYING AND PHOTOGRAMMETRY SYSTEMS DIV |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY | | THREAD LOCATION | INTERNAL AND | | EXTERNAL | | THREAD SIZE | 1 7/8-32 AND | | 2 5/64-32 | | SCREW THREAD SERIES DESIGNATOR | UNS | | THREAD CLASS | 2B AND | | 2A | | THREAD PITCH DIAMETERS | 1.8547 TO 1.8600 INCHES AND | | 2.0679 TO 2.0721 INCHES | | THREAD LENGTH | 0.300 INCHES AND | | 0.376 INCHES | | THREAD DIRECTION | RIGHT-HAND | | ECCENTRIC CONSTRUCTION | PROVIDED | | CELL ECCENTRICITY FROM GEOMETRIC AXIS | 0.001 INCHES | | CHAMFER LOCATION | THREADED END | | DRIVE TYPE | DRILLED HOLE | | ELEMENT SECURING METHOD | EXTERNAL THREAD | | OVERALL LENGTH | 1.836 INCHES NOMINAL | | OVERALL DIAMETER | 2.250 INCHES NOMINAL |
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