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National Stock Number:
1270-01-171-6931
Federal Supply Class:
1270
National Item Identification Number:
011716931
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:
| 13074828 | 04939 | LOCKHEED MARTIN CORPORATION | | 13074828 | 58260 | PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH |
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Techincal Specification:
| DRIVE TYPE | SLOTTED DRIVE ON PERIPHERY | | ECCENTRIC CONSTRUCTION | NOT PROVIDED | | ELEMENT SECURING METHOD | RETAINER RING | | CHAMFER LOCATION | DRIVE END | | CHAMFER SIZE | 0.020 IN.BY 45 DEG | | OVERALL LENGTH | 0.340 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-P-46131,TYPE 3,CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | PLASTIC POLYPHENYLENE OXIDE | | OVERALL DIAMETER | 1.438 INCHES NOMINAL | | SCREW THREAD SERIES DESIGNATOR | UN | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LOCATION | EXTERNAL | | THREAD PITCH DIAMETERS | +1.4127 TO 1.4130 INCHES | | THREAD LENGTH | 0.320 INCHES | | THREAD SIZE | 1 7/16-28 |
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