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National Stock Number:
6650-01-283-7934
Federal Supply Class:
6650
National Item Identification Number:
012837934
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:
| 5525604 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| OVERALL DIAMETER | 1.900 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY 356.0 | | SPECIAL FEATURES | 125 AND 250 MICROINCH SURFACE AS REQUIRED | | SCREW THREAD SERIES DESIGNATOR | UNS | | THREAD CLASS | 3B | | THREAD PITCH DIAMETERS | +1.6818 TO 1.6862 INCHES | | THREAD LENGTH | 0.100 INCHES | | THREAD LOCATION | INTERNAL | | THREAD SIZE | 1 23/32-20 |
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