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National Stock Number: 1270-01-171-6923
Federal Supply Class: 1270
National Item Identification Number: 011716923
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:
| 13074715 | 04939 | LOCKHEED MARTIN CORPORATION | | 13074715 | 58260 | PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH |
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Techincal Specification:
| ECCENTRIC CONSTRUCTION | NOT PROVIDED | | CHAMFER LOCATION | BOTH ENDS | | CHAMFER SIZE | 0.032 IN.BY 25 DEG | | MATERIAL | ALUMINUM ALLOY 6061 | | OVERALL DIAMETER | 2.525 INCHES NOMINAL | | OVERALL LENGTH | 0.180 INCHES NOMINAL | | SCREW THREAD SERIES DESIGNATOR | UNS | | THREAD CLASS | 2B | | THREAD DIRECTION | RIGHT-HAND | | THREAD LOCATION | INTERNAL | | THREAD LENGTH | 0.180 INCHES | | THREAD PITCH DIAMETERS | +2.4536 TO 2.4588 INCHES | | THREAD SIZE | 2.470-40 |
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