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National Stock Number:
1240-01-079-9839
Federal Supply Class:
1240
National Item Identification Number:
010799839
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:
| 12266782 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| CHAMFER LOCATION | THREADED END | | CHAMFER SIZE | 0.030 IN. BY 45 DEG | | ECCENTRIC CONSTRUCTION | NOT PROVIDED | | MATERIAL | ALUMINUM ALLOY | | OVERALL DIAMETER | 5.088 INCHES MINIMUM AND 5.090 INCHES MAXIMUM | | OVERALL LENGTH | 4.874 INCHES MINIMUM AND 4.875 INCHES MAXIMUM | | OVERALL WIDTH | 2.620 INCHES MINIMUM AND 2.640 INCHES MAXIMUM | | SCREW THREAD SERIES DESIGNATOR | UNS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-STD-171, 7.2.2 MIL SPEC SINGLE TREATMENT RESPONSE | | SURFACE TREATMENT | ANODIZE | | THREAD CLASS | 2B AND 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD PITCH DIAMETERS | +4.7917 TO 4.7983 INCHES AND +4.8895 TO 4.8942 INCHES | | THREAD LENGTH | 4.812 INCHES AND 4.916 INCHES | | THREAD LOCATION | EXTERNAL | | THREAD SIZE | 4.812-32 AND 4.916-32 |
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