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National Stock Number:
1270-01-172-2221
Federal Supply Class:
1270
National Item Identification Number:
011722221
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:
| 13075703 | 04939 | LOCKHEED MARTIN CORPORATION | | 13075703 | 58260 | PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY 6061 | | THREAD LOCATION | INTERNAL | | THREAD SIZE | 1 5/16-40 | | SCREW THREAD SERIES DESIGNATOR | UNS | | THREAD CLASS | 2B | | THREAD PITCH DIAMETERS | 1.2963 TO 1.3010 INCHES | | THREAD LENGTH | 0.258 INCHES | | THREAD DIRECTION | RIGHT-HAND | | ECCENTRIC CONSTRUCTION | PROVIDED | | CHAMFER LOCATION | THREADED END | | CHAMFER SIZE | 0.020 IN.BY 45 DEG | | OVERALL LENGTH | 0.735 INCHES NOMINAL | | OVERALL DIAMETER | 1.940 INCHES NOMINAL | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 04939 | | DESIGN CONTROL REFERENCE | 13075703 |
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