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National Stock Number:
1270-01-171-6926
Federal Supply Class:
1270
National Item Identification Number:
011716926
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:
| 13074694 | 04939 | LOCKHEED MARTIN CORPORATION | | 13074694 | 58260 | PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH |
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Techincal Specification:
| DRIVE TYPE | DRILLED HOLE ON PERIPHERY | | ECCENTRIC CONSTRUCTION | NOT PROVIDED | | ELEMENT SECURING METHOD | RETAINER RING | | CHAMFER LOCATION | INTERNAL THREAD END | | CHAMFER SIZE | 0.015 IN.BY 45 DEG | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A582,TY 416 ASSN STD SINGLE MATERIAL RESPONSE | | OVERALL LENGTH | 3.400 INCHES NOMINAL | | MATERIAL | STEEL COMP 416 | | OVERALL DIAMETER | 1.950 INCHES MINIMUM AND 1.960 INCHES MAXIMUM | | SCREW THREAD SERIES DESIGNATOR | UNS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE | | SURFACE TREATMENT | OXIDE | | THREAD CLASS | 2B | | THREAD DIRECTION | RIGHT-HAND | | THREAD LOCATION | INTERNAL | | THREAD PITCH DIAMETERS | +1.8338 TO 1.8388 INCHES | | THREAD LENGTH | 0.210 INCHES | | THREAD SIZE | 1.850-40 |
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