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National Stock Number:
1270-01-171-6936
Federal Supply Class:
1270
National Item Identification Number:
011716936
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:
| 13074636 | 04939 | LOCKHEED MARTIN CORPORATION | | 13074636 | 58260 | PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH |
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Techincal Specification:
| ECCENTRIC CONSTRUCTION | NOT PROVIDED | | DRIVE TYPE | SLOTTED DRIVE ON PERIPHERY | | CHAMFER LOCATION | OPPOSITE DRIVE END | | CHAMFER SIZE | 0.020 IN.BY 45 DEG | | OVERALL DIAMETER | 2.812 INCHES NOMINAL | | OVERALL LENGTH | 0.156 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM-A582,COND A ASSN STD SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL CORROSION RESISTING | | SCREW THREAD SERIES DESIGNATOR | UNS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIS-20134 MFR REF SINGLE TREATMENT RESPONSE | | SURFACE TREATMENT | PASSIVATE | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 2B | | THREAD LENGTH | 0.156 INCHES | | THREAD LOCATION | INTERNAL | | THREAD PITCH DIAMETERS | +2.4838 TO 2.4890 INCHES | | THREAD SIZE | 2 1/2-40 |
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