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National Stock Number:
1270-01-264-0550
Federal Supply Class:
1270
National Item Identification Number:
012640550
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:
| 13076653 | 04939 | LOCKHEED MARTIN CORPORATION | | 13076653 | 58260 | PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH |
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Techincal Specification:
| DRIVE TYPE | DRILLED HOLE | | ECCENTRIC CONSTRUCTION | NOT PROVIDED | | ELEMENT SECURING METHOD | INTERNAL FLANGE | | CHAMFER LOCATION | LARGER DIAMETER END | | CHAMFER SIZE | 0.005 IN. BY 15 DEG | | OVERALL DIAMETER | 2.425 INCHES NOMINAL | | OVERALL LENGTH | 0.845 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY | | SCREW THREAD SERIES DESIGNATOR | UNC | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD PITCH DIAMETERS | +2.4381 TO 2.4688 INCHES | | THREAD LENGTH | 0.125 INCHES | | THREAD LOCATION | EXTERNAL | | THREAD SIZE | 2 15/32-40 |
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