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National Stock Number:
1240-01-081-1707
Federal Supply Class:
1240
National Item Identification Number:
010811707
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:
| 12266750 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| DRIVE TYPE | DRILLED HOLE | | ECCENTRIC CONSTRUCTION | NOT PROVIDED | | CHAMFER LOCATION | SMALLER DIAMETER END | | CHAMFER SIZE | 0.188 IN. BY 55 DEG | | OVERALL LENGTH | 3.835 INCHES MINIMUM AND 3.839 INCHES MAXIMUM | | MATERIAL | ALUMINUM ALLOY 6061 | | OVERALL DIAMETER | 3.398 INCHES MINIMUM AND 3.400 INCHES MAXIMUM | | SCREW THREAD SERIES DESIGNATOR | UNS | | THREAD CLASS | 2B AND 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LOCATION | INTERNAL AND EXTERNAL | | THREAD LENGTH | 0.165 INCHES AND 0.500 INCHES | | THREAD PITCH DIAMETERS | +3.2308 TO 3.2366 INCHES AND +2.9743 TO 2.9787 INCHES | | THREAD SIZE | 3 1/4-32 AND 3-32 |
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