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National Stock Number:
1270-01-172-2220
Federal Supply Class:
1270
National Item Identification Number:
011722220
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:
| 13075704 | 04939 | LOCKHEED MARTIN CORPORATION | | 13075704 | 58260 | PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY 6061 | | THREAD LOCATION | INTERNAL | | THREAD SIZE | 2.000-40 | | SCREW THREAD SERIES DESIGNATOR | UNS | | THREAD CLASS | 2B | | THREAD PITCH DIAMETERS | 1.9838 TO 1.9888 INCHES | | THREAD LENGTH | 0.144 INCHES | | THREAD DIRECTION | RIGHT-HAND | | ECCENTRIC CONSTRUCTION | NOT PROVIDED | | CHAMFER LOCATION | SMALLER DIAMETER END | | CHAMFER SIZE | 0.050 IN.BY 45 DEG | | OVERALL LENGTH | 0.490 INCHES NOMINAL | | OVERALL DIAMETER | 3.060 INCHES NOMINAL | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 04939 | | DESIGN CONTROL REFERENCE | 13075704 |
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