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National Stock Number:
1270-01-171-6921
Federal Supply Class:
1270
National Item Identification Number:
011716921
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:
| 13074711 | 04939 | LOCKHEED MARTIN CORPORATION | | 13074711 | 58260 | PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH |
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Techincal Specification:
| CHAMFER LOCATION | OPPOSITE DRIVE END | | CHAMFER SIZE | 0.020 IN.BY 45 DEG | | DRIVE TYPE | SLOTTED DRIVE ON PERIPHERY | | ECCENTRIC CONSTRUCTION | NOT PROVIDED | | MATERIAL | ALUMINUM ALLOY 6061 | | OVERALL DIAMETER | 3.188 INCHES NOMINAL | | OVERALL LENGTH | 0.110 INCHES NOMINAL | | SCREW THREAD SERIES DESIGNATOR | UNS | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD PITCH DIAMETERS | +3.1615 TO 3.1659 INCHES | | THREAD LENGTH | 0.110 INCHES | | THREAD LOCATION | EXTERNAL | | THREAD SIZE | 3 3/16-32 |
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